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Prof. Dr. Torsten Meier

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Publications
Prof. Dr. Torsten Meier

Computational Optoelectronics and Photonics

Head - Professor

Paderborn University

Vice President - Professor - Vice-President for International Relations

Center for Optoelectronics and Photonics (CeOPP)

Member - Professor

Institute for photonic quantum systems (PhoQS)

Professor

Vorstand

Member - Professor

Transregional Collaborative Research Centre 142

Member - Professor

Phone:
+49 5251 60-2336
Fax:
+49 5251 60-3435
Office:
N3.338
Web:
Visitor:
Pohlweg 55
33098 Paderborn

Open list in Research Information System

2023

Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field

H. Rose, A.N. Vasil'ev, O.V. Tikhonova, T. Meier, P. Sharapova, Physical Review A (2023), 107(1), 013703

DOI


Gain recovery dynamics in active type-II semiconductor heterostructures

T. Meier, F. Schäfer, M. Stein, J. Lorenz, F. Dobener, C. Ngo, J.T. Steiner, C. Fuchs, W.. Stolz, K. Volz, J. Hader, J. Moloney, S. Koch, S. Chatterjee, Applied Physics Letters (2023), 122

DOI


Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields

T. Meier, M. Stein, F. Schäfer, D. Anders, J.H. Littmann, M. Fey, A. Trautmann, C. Ngo, J.T. Steiner, M. Reichelt, C. Fuchs, K. Volz, S. Chatterjee, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE , 2023, pp. 35-39

The nonlinear optical response of quantum well excitons is investigated experimentally using polarization resolved four wave mixing, optical-pump optical-probe, and optical-pump Terahertz-probe spectroscopy. The four-wave mixing data reveal clear signatures of coherent biexcitons which concur with straight-forward polarization selection rules at the Γ point. The type-I samples show the well-established time-domain beating signatures in the transients as well as the corresponding spectral signatures clearly. The latter are also present in type-II samples; however, the smaller exciton and biexciton binding energies in these structures infer longer beating times which, in turn, are accompanied by faster dephasing of the type-II exciton coherences. Furthermore, the THz absorption following spectrally narrow, picosecond excitation at energies in the vicinity of the 1s exciton resonance are discussed. Here, the optical signatures yield the well-established redshifts and blueshifts for the appropriate polarization geometries in type-I quantum well samples also termed “AC Stark Effect”. The THz probe reveals intriguing spectral features which can be ascribed to coherent negative absorption following an excitation into a virtual state for an excitation below the 1s exciton resonance. Furthermore, the scattering and ionization of excitons is discussed for several excitation geometries yielding control rules for elastic and inelastic quasiparticle collisions.


Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light

T. Meier, H. Rose, S. Grisard, A.V. Trifonov, R. Reichhardt, M. Reichelt, M. Bayer, I.A.. Akimov, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023, pp. 87-93

The nonlinear optical response of an ensemble of semiconductor quantum dots is analyzed by wave-mixing processes, where we focus on four-wave mixing with two incident pulses. Wave-mixing experiments are often described with semiclassical models, where the light is modeled classically and the material quantum mechanically. Here, however, we use a fully quantized model, where the light is given by a quantum state of light. Quantum light involves more degrees of freedom than classical light as e.g., its photon statistics and quantum correlations, which is a promising resource for quantum devices, such as quantum memories. The light-matter interaction is treated with a Jaynes-Cummings type model and the quantum field is given by a single mode since the quantum dots are embedded in a microcavity. We present numerical simulations of the four-wave-mixing response of a homogeneous system for pulse sequences and find a significant dependence of the result on the photon statistics of the incident pulses. The model constitutes a problem with a large state space which arises from the frequency distribution of the transition energies of the inhomogeneously broadened quantum dot ensemble that is coupled with a quantum light mode. Here we approximate the dynamics by summing over individual quantum dot-microcavity systems. Photon echoes arising from the excitation with different quantum states of light are simulated and compared.


Terahertz-induced anomalous currents following the optical excitation of excitons in semiconductor quantum wells

T. Meier, C. Ngo, S. Priyadarshi, H.T. Duc, M. Bieler, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023, pp. 81-86

Anomalous currents refer to electronic currents that flow perpendicularly to the direction of the accelerating electric field. Such anomalous currents can be generated when Terahertz fields are applied after an optical interband excitation of GaAs quantum wells. The underlying processes are investigated by numerical solutions of the semiconductor Bloch equations in the length gauge. Excitonic effects are included by treating the manybody Coulomb interaction in time-dependent Hartree-Fock approximation and additionally also carrier-phonon scattering processes are considered. The band structure and matrix elements are obtained from a 14-band k · p model within the envelope function approximation. The random phase factors of the matrix elements that appear due to the separate numerical diagonalization at each k-point are treated by applying a smooth gauge transformation. We present the macroscopic Berry curvature and anomalous current transients with and without excitonic effects. It is demonstrated that the resonant optical excitation of excitonic resonances can significantly enhance the Berry curvature and the anomalous currents.


Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations

T. Meier, A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J.T. Steiner, M. Reichelt, S. Chatterjee, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023, pp. 40-45

The nonlinear optical response of quantum well excitons excited by optical fields is analyzed by numerical solutions of the semiconductor Bloch equations. Differential absorption spectra are computed for resonant pumping at the exciton resonance and the dependence of the absorption changes on the polarization directions of the pump and probe pulses is investigated. Coherent biexcitonic many-body correlations are included in our approach up to third-order in the optical fields. Results are presented for spatially-direct type-I and spatiallyindirect type-II quantum well systems. Due to the spatial inhomogeneity, in type-II structures a finite coupling between excitons of opposite spins exists already on the Hartree-Fock level and contributes to the absorption changes for the case of opposite circularly polarized pump and probe pulses.


Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots

T. Meier, S. Grisard, A. Trifonov, H. Rose, R. Reichhardt, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, I. Akimov, in: arxiv:2302.02480, 2023


2022

Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped laser pulses

S. Grisard, H. Rose, A.V. Trifonov, R. Reichhardt, D.E. Reiter, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, I.A. Akimov, Physical Review B (2022), 106(20), 205408

DOI


Coherent contributions to population dynamics in a semiconductor microcavity

J. Paul, H. Rose, E. Swagel, T. Meier, J.K. Wahlstrand, A.D. Bristow, Physical Review B (2022), 105(11), 115307

DOI


Steady states of Λ-type three-level systems excited by quantum light with various photon statistics in lossy cavities

H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, New Journal of Physics (2022), 24(6), 063020

<jats:title>Abstract</jats:title> <jats:p>The interaction between quantum light and matter is being intensively studied for systems that are enclosed in high-<jats:italic>Q</jats:italic> cavities which strongly enhance the light–matter coupling. Cavities with low <jats:italic>Q</jats:italic>-factors are generally given less attention due to their high losses that quickly destroy quantum systems. However, bad cavities can be utilized for several applications, where lower <jats:italic>Q</jats:italic>-factors are required, e.g., to increase the spectral width of the cavity mode. In this work, we demonstrate that low-<jats:italic>Q</jats:italic> cavities can be beneficial for preparing specific electronic steady states when certain quantum states of light are applied. We investigate the interaction between quantum light with various statistics and matter represented by a Λ-type three-level system in lossy cavities, assuming that cavity losses are the dominant loss mechanism. We show that cavity losses lead to non-trivial electronic steady states that can be controlled by the loss rate and the initial statistics of the quantum fields. We discuss the mechanism of the formation of such steady states on the basis of the equations of motion and present both analytical expressions and numerical simulations for such steady states.</jats:p>


Theoretical analysis of correlations between two quantum fields exciting a three-level system using the cluster-expansion approach

H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, in: Ultrafast Phenomena and Nanophotonics XXVI, 2022

DOI



Microscopic simulations of high harmonic generation from semiconductors

A. Trautmann, R. Zuo, G. Wang, W. Hannes, S. Yang, L.H. Thong, C. Ngo, J. Steiner, M. Ciappina, M. Reichelt, H.T. Duc, X. Song, W. Yang, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXVI, 2022

DOI


2021

Neighboring Atom Collisions in Solid-State High Harmonic Generation

R. Zuo, A. Trautmann, G. Wang, W. Hannes, S. Yang, X. Song, T. Meier, M. Ciappina, H.T. Duc, W. Yang, Ultrafast Science (2021), 2021

<jats:p>High harmonic generation (HHG) from solids shows great application prospects in compact short-wavelength light sources and as a tool for imaging the dynamics in crystals with subnanometer spatial and attosecond temporal resolution. However, the underlying collision dynamics behind solid HHG is still intensively debated and no direct mapping relationship between the collision dynamics with band structure has been built. Here, we show that the electron and its associated hole can be elastically scattered by neighboring atoms when their wavelength approaches the atomic size. We reveal that the elastic scattering of electron/hole from neighboring atoms can dramatically influence the electron recombination with its left-behind hole, which turns out to be the fundamental reason for the anisotropic interband HHG observed recently in bulk crystals. Our findings link the electron/hole backward scattering with Van Hove singularities and forward scattering with critical lines in the band structure and thus build a clear mapping between the band structure and the harmonic spectrum. Our work provides a unifying picture for several seemingly unrelated experimental observations and theoretical predictions, including the anisotropic harmonic emission in MgO, the atomic-like recollision mechanism of solid HHG, and the delocalization of HHG in ZnO. This strongly improved understanding will pave the way for controlling the solid-state HHG and visualizing the structure-dependent electron dynamics in solids.</jats:p>


Microscopic analysis of high harmonic generation in semiconductors with degenerate bands

L.H. Thong, C. Ngo, H.T. Duc, X. Song, T. Meier, Physical Review B (2021), 103, pp. 085201

DOI


Low-field onset of Wannier-Stark localization in a polycrystalline hybrid organic inorganic perovskite

D. Berghoff, J. Bühler, M. Bonn, A. Leitenstorfer, T. Meier, H. Kim, Nature Communications (2021), 12(1), 5719

<jats:title>Abstract</jats:title><jats:p>Methylammonium lead iodide perovskite (MAPbI<jats:sub>3</jats:sub>) is renowned for an impressive power conversion efficiency rise and cost-effective fabrication for photovoltaics. In this work, we demonstrate that polycrystalline MAPbI<jats:sub>3</jats:sub>s undergo drastic changes in optical properties at moderate field strengths with an ultrafast response time, via transient Wannier Stark localization. The distinct band structure of this material - the large lattice periodicity, the narrow electronic energy bandwidths, and the coincidence of these two along the same high-symmetry direction – enables relatively weak fields to bring this material into the Wannier Stark regime. Its polycrystalline nature is not detrimental to the optical switching performance of the material, since the least dispersive direction of the band structure dominates the contribution to the optical response, which favors low-cost fabrication. Together with the outstanding photophysical properties of MAPbI<jats:sub>3</jats:sub>, this finding highlights the great potential of this material in ultrafast light modulation and novel photonic applications.</jats:p>


Nondegenerate two-photon absorption in ZnSe: Experiment and theory

L. Krauss-Kodytek, W. Hannes, T. Meier, C. Ruppert, M. Betz, Physical Review B (2021), 104(8), 085201

DOI


Nondegenerate two-photon absorption in ZnSe: Experiment and theory

L. Krauss-Kodytek, W. Hannes, T. Meier, C. Ruppert, M. Betz, Physical Review B (2021), 104(8), 085201

DOI


Generating two-mode squeezing with multimode measurement-induced nonlinearity

M. Riabinin, P. Sharapova, T. Bartley, T. Meier, Journal of Physics Communications (2021), 5(4)

DOI


Theoretical analysis and simulations of two-dimensional Fourier transform spectroscopy performed on exciton-polaritons of a quantum-well microcavity system

H. Rose, J. Paul, J.K. Wahlstrand, A.D. Bristow, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXV, 2021

DOI


Controlling the emission time of photon echoes by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles

M. Reichelt, H. Rose, A.N. Kosarev, S.V. Poltavtsev, M. Bayer, I.A. Akimov, C. Schneider, M. Kamp, S. Höfling, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXV, 2021

DOI


Dark-state and loss-induced phenomena in the quantum-optical regime of Λ-type three-level systems

H. Rose, D.V. Popolitova, O.V. Tikhonova, T. Meier, P. Sharapova, Physical Review A (2021), 103, 013702

DOI


Bright correlated twin-beam generation and radiation shaping in high-gain parametric down-conversion with anisotropy

M. Riabinin, P. Sharapova, T. Meier, Optics Express (2021), 29(14), pp. 21876-21890

<jats:p>Uniaxial anisotropy in nonlinear birefringent crystals limits the efficiency of nonlinear optical interactions and breaks the spatial symmetry of light generated in the parametric down-conversion (PDC) process. Therefore, this effect is usually undesirable and must be compensated for. However, high gain may be used to overcome the destructive role of anisotropy in order to generate bright two-mode correlated twin-beams. In this work, we provide a rigorous theoretical description of the spatial properties of bright squeezed light in the presence of strong anisotropy. We investigate a single crystal and a system of two crystals with an air gap (corresponding to a nonlinear SU(1,1) interferometer) and demonstrate the generation of bright correlated twin-beams in such configurations at high gain due to anisotropy. We explore the mode structure of the generated light and show how anisotropy, together with crystal spacing, can be used for radiation shaping.</jats:p>


Approximate nonlinear wave solutions of the coupled two-component Gross–Pitaevskii equations with spin–orbit interaction

D.B. Belobo, T. Meier, New Journal of Physics (2021), 23, 043045

DOI


2020

Realization of all-optical vortex switching in exciton-polariton condensates.

X. Ma, B. Berger, M. Aßmann, R. Driben, T. Meier, C. Schneider, S. Höfling, S. Schumacher, Nature Communications (2020), 11(1), pp. 897


Enhanced high-order harmonic generation in semiconductors by excitation with multicolor pulses

X. Song, S. Yang, R. Zuo, T. Meier, W. Yang, Physical Review A (2020), 101, 033410

DOI


Accurate photon echo timing by optical freezing of exciton dephasing and rephasing in quantum dots

A.N. Kosarev, H. Rose, S.V. Poltavtsev, M. Reichelt, C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, I.A. Akimov, Communications Physics (2020), 3, 228

<jats:title>Abstract</jats:title><jats:p>Semiconductor quantum dots are excellent candidates for ultrafast coherent manipulation of qubits by laser pulses on picosecond timescales or even faster. In inhomogeneous ensembles a macroscopic optical polarization decays rapidly due to dephasing, which, however, is reversible in photon echoes carrying complete information about the coherent ensemble dynamics. Control of the echo emission time is mandatory for applications. Here, we propose a concept to reach this goal. In a two-pulse photon echo sequence, we apply an additional resonant control pulse with multiple of 2<jats:italic>π</jats:italic> area. Depending on its arrival time, the control slows down dephasing or rephasing of the exciton ensemble during its action. We demonstrate for self-assembled (In,Ga)As quantum dots that the photon echo emission time can be retarded or advanced by up to 5 ps relative to its nominal appearance time without control. This versatile protocol may be used to obtain significantly longer temporal shifts for suitably tailored control pulses.</jats:p>


Strongly nonresonant four-wave mixing in semiconductors

W. Hannes, A. Trautmann, M. Stein, F. Schäfer, M. Koch, T. Meier, Physical Review B (2020), 101, pp. 075203

DOI


k.p-based multiband simulations of non-degenerate two-photon absorption in bulk GaAs

W. Hannes, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXIV, 2020, pp. 112780S

DOI


Carrier-wave population transfer in semiconductors

R. Zuo, X. Song, T. Meier, W. Yang, Journal of Physics: Conference Series (2020), 1412, 082005

DOI


2019

Bloch oscillations of multidimensional dark soliton wave packets and light bullets.

R. Driben, X. Ma, S. Schumacher, T. Meier, Optics Letters (2019), 44(6), pp. 1327-1330


Nonlinear integrated quantum electro-optic circuits

K. Luo, S. Brauner, C. Eigner, P. Sharapova, R. Ricken, T. Meier, H. Herrmann, C. Silberhorn, Science Advances (2019), 5(1)

<jats:p>An integrated chip with quantum state generation, active polarization manipulation, and precise time control is demonstrated.</jats:p>



Higher-order contributions and nonperturbative effects in the nondegenerate nonlinear optical absorption of semiconductors using a two-band model

W. Hannes, T. Meier, Physical Review B (2019), 99(12), 125301

DOI


Spatially asymmetric transients of propagating exciton-polariton modes in a planar CdZnTe/CdMgTe guiding structure

J. Vondran, F. Spitzer, M. Bayer, I.A. Akimov, A. Trautmann, M. Reichelt, C. Meier, N. Weber, T. Meier, R. André, H. Mariette, Physical Review B (2019), 100

DOI


Spatially asymmetric transients of propagating exciton-polariton modes in a planar CdZnTe/CdMgTe guiding structure

J. Vondran, F. Spitzer, M. Bayer, I.A. Akimov, A. Trautmann, M. Reichelt, C. Meier, N. Weber, T. Meier, R. André, H. Mariette, Physical Review B (2019), 100

DOI


Intensity-dependent degenerate and non-degenerate nonlinear optical absorption of direct-gap semiconductors

W. Hannes, L. Krauß-Kodytek, C. Ruppert, M. Betz, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXIII, 2019

DOI


Ballistic photocurrents in semiconductor quantum wells caused by the excitation of asymmetric excitons

H.T. Duc, C. Ngo, T. Meier, Physical Review B (2019), 100(4), 045308

DOI


Attosecond temporal confinement of interband excitation by intraband motion

X. Song, R. Zuo, S. Yang, P. Li, T. Meier, W. Yang, Optics Express (2019), 27(3), pp. 2225-2234

DOI


Generating two-mode squeezing with multimode measurement-induced nonlinearity

M. Riabinin, P. Sharapova, T. Bartley, T. Meier, in: arXiv:1912.09097, 2019

Measurement-induced nonclassical effects in a two-mode interferometer are investigated theoretically using numerical simulations and analytical results. We demonstrate that for certain parameters measurements within the interferometer lead to the occurrence of two-mode squeezing. The results strongly depend on the detection probability, the phase inside the interferometer, and the choice of the input states. The appropriate parameters for maximized squeezing are obtained. We analyze the influence of losses and confirm that the predicted effects are within reach of current experimental techniques.


2018

Nonlinearity-induced localization in a periodically driven semidiscrete system

R. Driben, V.V. Konotop, B.A. Malomed, T. Meier, A.V. Yulin, Physical Review E (2018), 97(6)

DOI


Signatures of transient Wannier-Stark localization in bulk gallium arsenide

C. Schmidt, J. Bühler, A. Heinrich, J. Allerbeck, R. Podzimski, D. Berghoff, T. Meier, W.G. Schmidt, C. Reichl, W. Wegscheider, D. Brida, A. Leitenstorfer, Nature Communications (2018), 9(1)

DOI


Observation and Uses of Position-Space Bloch Oscillations in an Ultracold Gas

Z.A. Geiger, K.M. Fujiwara, K. Singh, R. Senaratne, S.V. Rajagopal, M. Lipatov, T. Shimasaki, R. Driben, V.V. Konotop, T. Meier, D.M. Weld, Physical Review Letters (2018), 120(21)

DOI


Nonlinearity-induced localization in a periodically driven semidiscrete system

R. Driben, V.V. Konotop, B.A. Malomed, T. Meier, A.V. Yulin, Physical Review E (2018), 97(6)

DOI


Coherent optical spectroscopy of charged exciton complexes in semiconductor nanostructures

I. Akimov, S.V. Poltavtsev, M. Salewski, I.A. Yugova, G. Karczewski, T. Wojtowicz, W. Maciej, M. Reichelt, T. Meier, D. Yakovlev, M. Bayer, in: Ultrafast Phenomena and Nanophotonics XXII, 2018, pp. 105300G

DOI


Observation and Uses of Position-Space Bloch Oscillations in an Ultracold Gas

Z.A. Geiger, K.M. Fujiwara, K. Singh, R. Senaratne, S.V. Rajagopal, M. Lipatov, T. Shimasaki, R. Driben, V.V. Konotop, T. Meier, D.M. Weld, Physical Review Letters (2018), 120(21)

DOI


Monolithically Integrated Hong-Ou-Mandel Experiment in LiNbO3

K.H. Luo, S. Brauner, C. Eigner, P. Sharapova, R. Ricken, T. Meier, H. Herrmann, C. Silberhorn, in: Conference on Lasers and Electro-Optics, OSA, 2018

DOI


Signatures of transient Wannier-Stark localization in bulk gallium arsenide

C. Schmidt, J. Bühler, A. Heinrich, J. Allerbeck, R. Podzimski, D. Berghoff, T. Meier, W.G. Schmidt, C. Reichl, W. Wegscheider, D. Brida, A. Leitenstorfer, Nature Communications (2018), 9, 2890

DOI


Foundations of Coherent Transients in Semiconductors

T. Meier, S. Koch, in: Encyclopedia of Modern Optics (Second Edition), Elsevier, 2018, pp. 264-277

Short laser pulses are able to generate material excitations with a well-defined phase which is imposed by the optical excitation source. The generated coherent superposition state be described as an optical polarization which exists only in non-equilibrium situations. The coherence, i.e., the phase relations between the optical transitions that originate from the excitation, leads to several interesting effects in time-resolved linear and nonlinear optical spectroscopy. In this article, the basic principles that underlie these coherent transients are introduced and several examples are presented.


Manipulation of Two-Photon Interference by Entanglement

P. Sharapova, K.H. Luo, H. Herrmann, M. Reichelt, C. Silberhorn, T. Meier, in: Conference on Lasers and Electro-Optics, OSA, 2018

DOI


Exotic complexes in one-dimensional Bose-Einstein condensates with spin-orbit coupling

D.B. Belobo, T. Meier, Scientific Reports (2018), 8(1), 3706

DOI


Coherent optical spectroscopy of charged exciton complexes in semiconductor nanostructures

I. Akimov, S.V. Poltavtsev, M. Salewski, I.A. Yugova, G.. Karczewski, T. Wojtowicz, W.. Maciej , M. Reichelt, T. Meier, D. Yakovlev, M. Bayer, in: Ultrafast Phenomena and Nanophotonics XXII, 2018

DOI


2017

Modified two-photon interference achieved by the manipulation of entanglement

P. Sharapova, K.H. Luo, H. Herrmann, M. Reichelt, C. Silberhorn, T. Meier, Physical Review A (2017), 96, pp. 043857

DOI


High-Resolution Two-Dimensional Optical Spectroscopy of Electron Spins

M. Salewski, S. Poltavtsev, I. Yugova, G. Karczewski, M. Wiater, T. Wojtowicz, D. Yakovlev, I. Akimov, T. Meier, M. Bayer, Physical Review X (2017), 7(3), 031030

DOI


Damping of Rabi oscillations in intensity-dependent photon echoes from exciton complexes in a CdTe/(Cd,Mg)Te single quantum well

S.V. Poltavtsev, M. Reichelt, I.A. Akimov, G. Karczewski, M. Wiater, T. Wojtowicz, D.R. Yakovlev, T. Meier, M. Bayer, Physical Review B (2017), 96, 075306

DOI


A microscopic approach to ultrafast near band gap photocurrents in bulk semiconductors

R. Podzimski, H.T. Duc, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXI, 2017

DOI


Bloch oscillations and resonant radiation of light propagating in arrays of nonlinear fibers with high-order dispersion

A. Yulin, R. Driben, T. Meier, Physical Review A (2017), 96(3), 033827

DOI


Anisotropic excitons and their contributions to shift current transients in bulk GaAs

R. Podzimski, H.T. Duc, T. Meier, Physical Review B (2017), 96(20), 205201

DOI


Bloch oscillations sustained by nonlinearity

R. Driben, V.V. Konotop, T. Meier, A.V. Yulin, Scientific Reports (2017), 7, 3194

DOI


Towards integrated superconducting detectors on lithium niobate waveguides

J.P. Höpker, M. Bartnick, E. Meyer-Scott, F. Thiele, T. Meier, T. Bartley, S. Krapick, N.M. Montaut, M. Santandrea, H. Herrmann, S. Lengeling, R. Ricken, V. Quiring, A.E. Lita, V.B. Verma, T. Gerrits, S.W. Nam, C. Silberhorn, in: Quantum Photonic Devices, 2017, pp. 1035809

DOI


Time-resolved photon echoes from donor-bound excitons in ZnO epitaxial layers

S.V. Poltavtsev, A.N. Kosarev, I.A. Akimov, D.R. Yakovlev, S. Sadofev, J. Puls, S.P. Hoffmann, M. Albert, C. Meier, T. Meier, M. Bayer, Physical Review B (2017), 96(3)

DOI


Toolbox for the design of LiNbO3-based passive and active integrated quantum circuits

P. Sharapova, K.H. Luo, H. Herrmann, M. Reichelt, T. Meier, C. Silberhorn, New Journal of Physics (2017), 19, 123009

DOI


Toolbox for the design of LiNbO3-based passive and active integrated quantum circuits

P. Sharapova, K.H. Luo, H. Herrmann, M. Reichelt, T. Meier, C. Silberhorn, New Journal of Physics (2017), 19, 123009

DOI


2016

Simulations of high harmonic generation from plasmonic nanoparticles in the terahertz region

Y. Grynko, T. Zentgraf, T. Meier, J. Förstner, Applied Physics B (2016), 122(9), pp. 242

DOI


Indium oxide inverse opal films synthesized by structure replication method

S. Amrehn, D. Berghoff, A. Nikitin, M. Reichelt, X. Wu, T. Meier, T. Wagner, Photonics and Nanostructures - Fundamentals and Applications (2016), 19, pp. 55-63

DOI


Dynamics of dipoles and vortices in nonlinearly coupled three-dimensional field oscillators

R. Driben, V.V. Konotop, B.A. Malomed, T. Meier, Physical Review E (2016), 94(1)

DOI


Precession and nutation dynamics of nonlinearly coupled non-coaxial three-dimensional matter wave vortices

R. Driben, V.V. Konotop, T. Meier, Scientific Reports (2016), 6, pp. 22758

DOI


Photocurrents in semiconductors and semiconductor quantum wells analyzed by k.p-based Bloch equations

R. Podzimski, H.T. Duc, S. Priyadarshi, C. Schmidt, M. Bieler, T. Meier, in: Ultrafast Phenomena and Nanophotonics XX, 2016

DOI


Advanced optical manipulation of carrier spins in (In,Ga)As quantum dots

S. Varwig, E. Evers, A. Greilich, D.R. Yakovlev, D. Reuter, A.D. Wieck, T. Meier, A. Zrenner, M. Bayer, Applied Physics B (2016), 122(1), 17

Spins in semiconductor quantum dots have been considered as prospective quantum bit excitations. Their coupling to the crystal environment manifests itself in a limitation of the spin coherence times to the microsecond range, both for electron and hole spins. This rather short-lived coherence compared to atomic states asks for manipulations on timescales as short as possible. Due to the huge dipole moment for transitions between the valence and conduction band, pulsed laser systems offer the possibility to perform manipulations within picoseconds or even faster. Here, we report on results that show the potential of optical spin manipulations with currently available pulsed laser systems. Using picosecond laser pulses, we demonstrate optically induced spin rotations of electron and hole spins. We further realize the optical decoupling of the hole spins from the nuclear surrounding at the nanosecond timescales and demonstrate an all-optical spin tomography for interacting electron spin sub-ensembles.


Two-dimensional symbiotic solitons and vortices in binary condensates with attractive cross-species interaction

X. Ma, R. Driben, B.A. Malomed, T. Meier, S. Schumacher, Scientific Reports (2016), 6, 34847

DOI


Ultrafast dynamical response of the lower exciton-polariton branch in CdZnTe

J. Lohrenz, S. Melzer, C. Ruppert, I.A. Akimov, H. Mariette, M. Reichelt, A. Trautmann, T. Meier, M. Betz, Physical Review B (2016), 93(7)

DOI


Ultrafast shift and rectification photocurrents in GaAs quantum wells: Excitation intensity dependence and the importance of band mixing

H.T. Duc, R. Podzimski, S. Priyadarshi, M. Bieler, T. Meier, Physical Review B (2016)

DOI


Entanglement classification with matrix product states

T. Meier, M. Sanz, I. Egusquiza, R.D. Candia, H. Saberi, L. Lamata, E. Solano, Scientific Reports (2016), 6, 30188

We propose an entanglement classification for symmetric quantum states based on their diagonal matrix-product-state (MPS) representation. The proposed classification, which preserves the stochastic local operation assisted with classical communication (SLOCC) criterion, relates entanglement families to the interaction length of Hamiltonians. In this manner, we establish a connection between entanglement classification and condensed matter models from a quantum information perspective. Moreover, we introduce a scalable nesting property for the proposed entanglement classification, in which the families for N parties carry over to the N + 1 case. Finally, using techniques from algebraic geometry, we prove that the minimal nontrivial interaction length n for any symmetric state is bounded by .


Counterdiabatic driving in spin squeezing and Dicke-state preparation

T. Meier, T. Opatrný, H. Saberi, E. Brion, K. Mølmer, Physical Review A (2016), 93(2), 023815

A method is presented to transfer a system of two-level atoms from a spin coherent state to a maximally spin squeezed Dicke state, relevant for quantum metrology and quantum information processing. The initial state is the ground state of an initial linear Hamiltonian that is gradually turned into a final quadratic Hamiltonian whose ground state is the selected Dicke state. We use compensating operators to suppress diabatic transitions to unwanted states that would occur if the change were not slow. We discuss the possibilities of constructing the compensating operators by sequential application of quadratic Hamiltonians available in experiments.


Quantum interference control of electrical currents in GaAs microstructures: physics and spectroscopic applications

E. Sternemann, T. Jostmeier, C. Ruppert, S. Thunich, H.T. Duc, R. Podzimski, T. Meier, M. Betz, Applied Physics B (2016), 122, 44

DOI


Influence of strong screening effect on the perpendicular polarized linear excitonic absorption spectra of semiconducting carbon nanotubes

T. Meier, H. Liu, The European Physical Journal B (2016), 89, 230

For incident light polarized perpendicular to the tube axis the multi-band semiconductor Bloch equations (MB-SBEs) that involve various screened interband Coulomb interactions (ICIs) are derived. The calculated E 12 peak is very close to the longitudinal excitonic peak E 22. Compared with the previous theoretical peak positions, the blue-shift of the peak in our results is about 0.5 eV. Then, subsequent detailed analyses show that the screening effect on the diagonal ICIs (D-ICIs) plays a key role in this big blue-shift. The valley-degenerate transverse pair excitations holding the same selection rule further enhance the screening effect on D-ICIs. Specially at q = 0 the dielectric function acting on the D-ICIs enhances two times. In our calculation the strong screening effect contributes 90% of the big blue-shift, while the non-diagonal ICIs (ND-ICIs) contribute to 10% of the blue-shift.


2015

Curvature effects in the band structure of carbon nanotubes including spin–orbit coupling

H. Liu, D.F. Heinze, H. Thanh Duc, S. Schumacher, T. Meier, Journal of Physics: Condensed Matter (2015), 445501

DOI


Time-domain calculations of shift currents in bulk GaAs

R. Podzimski, H.T. Duc, T. Meier, in: Ultrafast Phenomena and Nanophotonics XIX, 2015

DOI


Creation of vortices by torque in multidimensional media with inhomogeneous defocusing nonlinearity

R. Driben, T. Meier, B.A. Malomed, Scientific Reports (2015)

DOI


Sub-cycle control of multi-THz high-harmonic generation and all-coherent charge transport in bulk semiconductors

C. Lange, O. Schubert, M. Hohenleutner, F. Langer, S. Baierl, T. Maag, B. Urbanek, E.R.J. Edwards, G. Woltersdorf, D. Bougeard, U. Huttner, D. Golde, T. Meier, M. Kira, S.W. Koch, R. Huber, in: Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV, 2015

DOI


Sub-cycle control of multi-THz high-harmonic generation and all-coherent charge transport in bulk semiconductors

C. Lange, O. Schubert, M. Hohenleutner, F. Langer, S. Baierl, T. Maag, B. Urbanek, E.R.J. Edwards, G. Woltersdorf, D. Bougeard, U. Huttner, D. Golde, T. Meier, M. Kira, S.W. Koch, R. Huber, in: Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV, 2015

DOI


Creation of vortices by torque in multidimensional media with inhomogeneous defocusing nonlinearity

R. Driben, T. Meier, B.A. Malomed, Scientific Reports (2015), 5, pp. 9420

DOI


Multipoles and vortex multiplets in multidimensional media with inhomogeneous defocusing nonlinearity

R. Driben, N. Dror, B.A. Malomed, T. Meier, New Journal of Physics (2015), 17, 083043

DOI


Multipoles and vortex multiplets in multidimensional media with inhomogeneous defocusing nonlinearity

R. Driben, N. Dror, B.A. Malomed, T. Meier, New Journal of Physics (2015), 17, 083043

DOI


Time-domain calculations of shift currents in bulk GaAs

R. Podzimski, H.T. Duc, T. Meier, in: Ultrafast Phenomena and Nanophotonics XIX, 2015

DOI


Time-domain calculations of shift currents in bulk GaAs

R. Podzimski, H.T. Duc, T. Meier, in: Ultrafast Phenomena and Nanophotonics XIX, 2015

DOI


Curvature effects in the band structure of carbon nanotubes including spin–orbit coupling

H. Liu, D.F. Heinze, H. Thanh Duc, S. Schumacher, T. Meier, Journal of Physics: Condensed Matter (2015), 27(44), 445501

DOI


Multipoles and vortex multiplets in multidimensional media with inhomogeneous defocusing nonlinearity

R. Driben, N. Dror, B.A. Malomed, T. Meier, New Journal of Physics (2015), 17, 083043

DOI


Sub-cycle control of multi-THz high-harmonic generation and all-coherent charge transport in bulk semiconductors

C. Lange, O. Schubert, M. Hohenleutner, F. Langer, S. Baierl, T. Maag, B. Urbanek, E.R.J. Edwards, G. Woltersdorf, D. Bougeard, U. Huttner, D. Golde, T. Meier, M. Kira, S.W. Koch, R. Huber, in: Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV, 2015

DOI


Interaction of high-order solitons with external dispersive waves

T. Meier, I. Oreshnikov, R. Driben, A. Yulin, Optics Letters (2015), 40(23), pp. 5554-5557

The effect of mutual interaction between second-order soliton and dispersive waves (DWs) is investigated. It is predicted analytically and confirmed numerically that DWs (both transmitted and reflected components) become polychromatic after interaction with the soliton. Collision with DWs of considerable intensity can lead to acceleration/deceleration and central frequency shift of the soliton, while still preserving the soliton’s oscillating structure. Two second-order solitons with resonant DWs trapped between them can form an effective solitonic cavity with “flat” or “concave mirrors,” depending on the intensity of the input.


Time-domain calculations of shift currents in bulk GaAs

R. Podzimski, H.T. Duc, T. Meier, in: SPIE Proceedings Vol. 9361: Ultrafast Phenomena and Nanophotonics XIX, 2015

DOI


2014

Nonlinear dynamics of Airy-vortex 3D wave packets: emission of vortex light waves

R. Driben, T. Meier, Optics Letters (2014), 39(19), pp. 5539-5542

DOI


Influence of Coulomb-induced band couplings on linear excitonic absorption spectra of semiconducting carbon nanotubes

H. Liu, S. Schumacher, T. Meier, Physical Review B (2014), 89, 155407

DOI


Engineering plasmonic and dielectric directional nanoantennas

A. Hildebrandt, M. Reichelt, T. Meier, J. Förstner, in: Ultrafast Phenomena and Nanophotonics XVIII, 2014, pp. 89841G-8941G-6

Optical and infrared antennas provide a promising way to couple photons in and out of nanoscale structures. As counterpart to conventional radio antennas, they are able to increase optical felds in sub-wavelength volumes, to enhance excitation and emission of quantum emitters or to direct light, radiated by quantum emitters. The directed emission of these antennas has been mainly pursued by surface plasmon based devices, e.g. Yagi-Uda like antennas, which are rather complicated due to the coupling of several metallic particles. Also, like all metallic structures in optical or infrared regime, these devices are very sensitive to fabrication tolerances and are affected by strong losses. It has been shown recently, that such directed emission can be accomplished by dielectric materials as well. In this paper we present an optimization of nanoscopic antennas in the near infrared regime starting from a metallic Yagi-Uda structure. The optimization is done via a particle-swarm algorithm, using full time domain finite integration simulations to obtain the characteristics of the investigated structure, also taking into account substrates. Furthermore we present a dielectric antenna, which performs even better, due to the lack of losses by an appropriate choice of the dielectric material. These antennas are robust concerning fabrication tolerances and can be realized with different materials for both the antenna and the substrate, without using high index materials.


Regeneration of Airy pulses in fiber-optic links with dispersion management of the two leading dispersion terms of opposite signs

R. Driben, T. Meier, Physical Review A (2014), 89, 043817

DOI


Coupled Airy breathers

R. Driben, V.V. Konotop, T. Meier, Optics Letters (2014), 39(19), pp. 5523-5526

DOI


Theory of filtered type-II parametric down-conversion in the continuous-variable domain: Quantifying the impacts of filtering

A. Christ, C. Lupo, M. Reichelt, T. Meier, C. Silberhorn, Physical Review A (2014), 90

DOI


Three-dimensional hybrid vortex solitons

R. Driben, Y.V. Kartashov, B.A. Malomed, T. Meier, L. Torner, New Journal of Physics (2014), 16, 063035

DOI


Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations

T. Meier, O. Schubert, M. Hohenleutner, F. Langer, B. Urbanek, C. Lange, U. Huttner, D. Golde, M. Kira, S.W. Koch, R. Huber, Nature Photonics (2014), 8(2), 119-123

Ultrafast charge transport in strongly biased semiconductors is at the heart of high-speed electronics, electro-optics and fundamental solid-state physics1,2,3,4,5,6,7,8,9,10,11,12,13. Intense light pulses in the terahertz spectral range have opened fascinating vistas14,15,16,17,18,19,20,21. Because terahertz photon energies are far below typical electronic interband resonances, a stable electromagnetic waveform may serve as a precisely adjustable bias5,11,17,19. Novel quantum phenomena have been anticipated for terahertz amplitudes, reaching atomic field strengths8,9,10. We exploit controlled (multi-)terahertz waveforms with peak fields of 72 MV cm−1 to drive coherent interband polarization combined with dynamical Bloch oscillations in semiconducting gallium selenide. These dynamics entail the emission of phase-stable high-harmonic transients, covering the entire terahertz-to-visible spectral domain between 0.1 and 675 THz. Quantum interference of different ionization paths of accelerated charge carriers is controlled via the waveform of the driving field and explained by a quantum theory of inter- and intraband dynamics. Our results pave the way towards all-coherent terahertz-rate electronics.


Soliton gyroscopes in media with spatially growing repulsive nonlinearity

T. Meier, R. Driben, Y.V. Kartashov, B.A. Malomed, L. Torner, Physical review letters (2014), 112, 020404

We find that the recently introduced model of self-trapping supported by a spatially growing strength of a repulsive nonlinearity gives rise to robust vortex-soliton tori, i.e., three-dimensional vortex solitons, with topological charges S≥1. The family with S=1 is completely stable, while the one with S=2 has alternating regions of stability and instability. The families are nearly exactly reproduced in an analytical form by the Thomas-Fermi approximation. Unstable states with S=2 and 3 split into persistently rotating pairs or triangles of unitary vortices. Application of a moderate torque to the vortex torus initiates a persistent precession mode, with the torus’ axle moving along a conical surface. A strong torque heavily deforms the vortex solitons, but, nonetheless, they restore themselves with the axle oriented according to the vectorial addition of angular momenta.


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