TY - JOUR
AU - Rose, Hendrik
AU - Vasil'ev, A. N.
AU - Tikhonova, O. V.
AU - Meier, Torsten
AU - Sharapova, Polina
ID - 37280
IS - 1
JF - Physical Review A
SN - 2469-9926
TI - Quantum-optical excitations of semiconductor nanostructures in a microcavity using a two-band model and a single-mode quantum field
VL - 107
ER -
TY - CONF
AB - 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.
AU - Meier, Torsten
AU - Stein, M.
AU - Schäfer, F.
AU - Anders, D.
AU - Littmann, J. H.
AU - Fey, M.
AU - Trautmann, Alexander
AU - Ngo, C.
AU - Steiner, J. T.
AU - Reichelt, Matthias
AU - Fuchs, C.
AU - Volz, K.
AU - Chatterjee, S.
ID - 43189
T2 - Ultrafast Phenomena and Nanophotonics XXVII
TI - Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields
VL - 12419
ER -
TY - CONF
AB - 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.
AU - Meier, Torsten
AU - Ngo, C.
AU - Priyadarshi, S.
AU - Duc, H. T.
AU - Bieler, M.
ID - 43191
T2 - Ultrafast Phenomena and Nanophotonics XXVII
TI - Terahertz-induced anomalous currents following the optical excitation of excitons in semiconductor quantum wells
VL - 12419
ER -
TY - CONF
AB - 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.
AU - Meier, Torsten
AU - Trautmann, Alexander
AU - Stein, M.
AU - Schäfer, F.
AU - Anders, D.
AU - Ngo, C.
AU - Steiner, J. T.
AU - Reichelt, Matthias
AU - Chatterjee, S.
ID - 43190
T2 - Ultrafast Phenomena and Nanophotonics XXVII
TI - Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations
VL - 12419
ER -
TY - JOUR
AU - Meier, Torsten
AU - Schäfer, F.
AU - Stein, M.
AU - Lorenz, J.
AU - Dobener, F.
AU - Ngo, C.
AU - Steiner, J. T.
AU - Fuchs, C.
AU - Stolz, W.
AU - Volz, K.
AU - Hader, J.
AU - Moloney, J.V.
AU - Koch, S.W.
AU - Chatterjee, S.
ID - 43139
IS - 8
JF - Applied Physics Letters
TI - Gain recovery dynamics in active type-II semiconductor heterostructures
VL - 122
ER -
TY - GEN
AU - Meier, Torsten
AU - Grisard, S.
AU - Trifonov, A.V.
AU - Rose, Hendrik
AU - Reichhardt, R.
AU - Reichelt, Matthias
AU - Schneider, C.
AU - Kamp, M.
AU - Höfling, S.
AU - Bayer, M.
AU - Akimov, I.A
ID - 43132
T2 - arxiv:2302.02480
TI - Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum dots
ER -
TY - CONF
AB - 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.
AU - Rose, Hendrik
AU - Grisard, S.
AU - Trifonov, A. V.
AU - Reichhardt, R.
AU - Reichelt, Matthias
AU - Bayer, M.
AU - Akimov, I. A.
AU - Meier, Torsten
ID - 43192
T2 - Ultrafast Phenomena and Nanophotonics XXVII
TI - Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light
VL - 12419
ER -
TY - JOUR
AB - Since high-order harmonic generation (HHG) from atoms depends sensitively on the polarization of the driving laser field, the polarization gating (PG) technique was developed and applied successfully to generate isolated attosecond pulses from atomic gases. The situation is, however, different in solid-state systems as it has been demonstrated that due to collisions with neighboring atomic cores of the crystal lattice strong HHG can be generated even by elliptically- and circularly-polarized laser fields. Here we apply PG to solid-state systems and find that the conventional PG technique is inefficient for the generation of isolated ultrashort harmonic pulse bursts. In contrast, we demonstrate that a polarization-skewed laser pulse is able to confine the harmonic emission to a time window of less than one-tenth of the laser cycle. This method provides a novel way to control HHG and to generate isolated attosecond pulses in solids.
AU - Song, Xiaohong
AU - Yang, Shidong
AU - Wang, Guifang
AU - Lin, Jianpeng
AU - Wang, Liang
AU - Meier, Torsten
AU - Yang, Weifeng
ID - 45704
IS - 12
JF - Optics Express
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1094-4087
TI - Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse
VL - 31
ER -
TY - JOUR
AU - Zuo, Ruixin
AU - Song, Xiaohong
AU - Ben, Shuai
AU - Meier, Torsten
AU - Yang, Weifeng
ID - 45703
IS - 2
JF - Physical Review Research
KW - General Physics and Astronomy
SN - 2643-1564
TI - Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation
VL - 5
ER -
TY - JOUR
AU - Belobo, D. Belobo
AU - Meier, Torsten
ID - 45709
JF - Results in Physics
KW - General Physics and Astronomy
SN - 2211-3797
TI - Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings
ER -
TY - JOUR
AU - Ali, Usman
AU - Holthaus, Martin
AU - Meier, Torsten
ID - 49059
IS - 4
JF - Physical Review Research
KW - General Physics and Astronomy
SN - 2643-1564
TI - Chirped Bloch-harmonic oscillations in a parametrically forced optical lattice
VL - 5
ER -
TY - JOUR
AU - Ali, Usman
AU - Holthaus, Martin
AU - Meier, Torsten
ID - 52122
IS - 4
JF - Physical Review Research
KW - General Physics and Astronomy
SN - 2643-1564
TI - Chirped Bloch-harmonic oscillations in a parametrically forced optical lattice
VL - 5
ER -
TY - DATA
AU - Meier, Torsten
ID - 52124
TI - Chirped Bloch-harmonic oscillations in a parametrically forced optical lattice
ER -
TY - JOUR
AB - Abstract
The interaction between quantum light and matter is being intensively studied for systems that are enclosed in high-Q cavities which strongly enhance the light–matter coupling. Cavities with low Q-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 Q-factors are required, e.g., to increase the spectral width of the cavity mode. In this work, we demonstrate that low-Q 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.
AU - Rose, Hendrik
AU - Tikhonova, O V
AU - Meier, Torsten
AU - Sharapova, Polina
ID - 37318
IS - 6
JF - New Journal of Physics
KW - General Physics and Astronomy
SN - 1367-2630
TI - Steady states of Λ-type three-level systems excited by quantum light with various photon statistics in lossy cavities
VL - 24
ER -
TY - JOUR
AU - Grisard, S.
AU - Rose, Hendrik
AU - Trifonov, A. V.
AU - Reichhardt, R.
AU - Reiter, D. E.
AU - Reichelt, Matthias
AU - Schneider, C.
AU - Kamp, M.
AU - Höfling, S.
AU - Bayer, M.
AU - Meier, Torsten
AU - Akimov, I. A.
ID - 37319
IS - 20
JF - Physical Review B
SN - 2469-9950
TI - Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped laser pulses
VL - 106
ER -
TY - CONF
AU - Trautmann, Alexander
AU - Zuo, Ruixin
AU - Wang, Guifang
AU - Hannes, Wolf-Rüdiger
AU - Yang, Shidong
AU - Thong, Le Huu
AU - Ngo, Cong
AU - Steiner, Johannes
AU - Ciappina, Marcelo
AU - Reichelt, Matthias
AU - Duc, Huynh Thanh
AU - Song, Xiaohong
AU - Yang, Weifeng
AU - Meier, Torsten
ED - Betz, Markus
ED - Elezzabi, Abdulhakem Y.
ID - 37329
T2 - Ultrafast Phenomena and Nanophotonics XXVI
TI - Microscopic simulations of high harmonic generation from semiconductors
VL - 11999
ER -
TY - CONF
AU - Rose, Hendrik
AU - Tikhonova, Olga V.
AU - Meier, Torsten
AU - Sharapova, Polina
ED - Betz, Markus
ED - Elezzabi, Abdulhakem Y.
ID - 37327
T2 - Ultrafast Phenomena and Nanophotonics XXVI
TI - Theoretical analysis of correlations between two quantum fields exciting a three-level system using the cluster-expansion approach
VL - 11999
ER -
TY - JOUR
AU - Paul, J.
AU - Rose, Hendrik
AU - Swagel, E.
AU - Meier, Torsten
AU - Wahlstrand, J. K.
AU - Bristow, A. D.
ID - 37323
IS - 11
JF - Physical Review B
SN - 2469-9950
TI - Coherent contributions to population dynamics in a semiconductor microcavity
VL - 105
ER -
TY - GEN
AU - Meier, Torsten
AU - Ali, Usman
ID - 37325
T2 - Condensed Matter
TI - Super-Bloch oscillations with parametric modulation of a parabolic trap
ER -
TY - CONF
AB - We demonstrate theoretically and experimentally complex correlations in the photon numbers of two-mode quantum states using measurement-induced nonlinearity. For this, we combine the interference of coherent states and single photons with photon sub-traction.
AU - Meier, Torsten
AU - Hoepker, Jan Philipp
AU - Protte, Maximilian
AU - Eigner, Christof
AU - Silberhorn, Christine
AU - Sharapova, Polina R.
AU - Sperling, Jan
AU - Bartley, Tim
ID - 43744
SN - 978-1-957171-05-0
T2 - Conference on Lasers and Electro-Optics: Applications and Technology
TI - Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity
ER -