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Digitale Infotage für Schüler*innen vom 06.-09. Februar 2023

Photo: Universität Paderborn, Adelheid Rutenburges

Prof. Dr. Torsten Meier

Contact
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


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>


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, SPIE, 2022

DOI


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, SPIE, 2022

DOI


2021

Nondegenerate two-photon absorption in ZnSe: Experiment and theory

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

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


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>


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>


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), 21876

<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>


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


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), 043045

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>


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


Generating two-mode squeezing with multimode measurement-induced nonlinearity

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

DOI


2020

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

<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>


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

X. Song, S. Yang, R. Zuo, T. Meier, W. Yang, in: Physical Review A, 2020

DOI


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


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

DOI


Strongly nonresonant four-wave mixing in semiconductors

W. Hannes, A. Trautmann, M. Stein, F. Sch\, M. Koch, T. Meier, Phys. Rev. B (2020), 101, pp. 075203

DOI


Carrier-wave population transfer in semiconductors

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

DOI


2019

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


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)

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, 2225

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)

DOI


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


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)

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.


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)

DOI


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>


2018

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, SPIE, 2018

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


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


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, pp. 2890

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


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

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

DOI


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


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


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), 123009

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, pp. 031030

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)

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)

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 sustained by nonlinearity

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

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


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


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, pp. 075306

DOI


2016

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)

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.


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


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


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


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


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


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


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


2015

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


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, 445501

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), 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


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), 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


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


2014

Engineering plasmonic and dielectric directional nanoantennas

A. Hildebrandt, M. Reichelt, T. Meier, J. Förstner, in: Ultrafast Phenomena and Nanophotonics XVIII, SPIE, 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.


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)

DOI


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)

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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)

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

R. Driben, T. Meier, Optics Letters (2014), 5539

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Three-dimensional hybrid vortex solitons

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

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Coupled Airy breathers

R. Driben, V.V. Konotop, T. Meier, Optics Letters (2014), 5523

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2013

Generation and Time-Resolved Detection of Coherently Controlled Electric Currents at Surfaces

J. Güdde, M. Rohleder, T. Meier, S. Koch, U. Höfer, in: Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, 2013

DOI


Optimal second-harmonic generation in split-ring resonator arrays

Y. Grynko, T. Meier, S. Linden, F.B.P. Niesler, M. Wegener, J. Förstner, in: Ultrafast Phenomena and Nanophotonics XVII, SPIE, 2013, pp. 86230L-86230L-9

Previous experimental measurements and numerical simulations give evidence of strong electric and magnetic field interaction between split-ring resonators in dense arrays. One can expect that such interactions have an influence on the second harmonic generation. We apply the Discontinuous Galerkin Time Domain method and the hydrodynamic Maxwell-Vlasov model to simulate the linear and nonlinear optical response from SRR arrays. The simulations show that dense placement of the constituent building blocks appears not always optimal and collective effects can lead to a significant suppression of the near fields at the fundamental frequency and, consequently, to the decrease of the SHG intensity. We demonstrate also the great role of the symmetry degree of the array layout which results in the variation of the SHG efficiency in range of two orders of magnitude.


Collective effects in second-harmonic generation from split-ring-resonator arrays

F.B. Niesler, S. Linden, J. Förstner, Y. Grynko, T. Meier, M. Wegener, in: Conference on Lasers and Electro-Optics 2012, OSA, 2013

We perform experiments on resonant second-harmonic generation from planar gold split-ring-resonator arrays under normal incidence of light as a function of the lattice constant. Optimum nonlinear conversion occurs at intermediate lattice constants.


Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields

H. Liu, S. Schumacher, T. Meier, Physical Review B (2013)

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Femtosecond quantum interference control of electrical currents in GaAs: Signatures beyond the perturbativeχ(3)limit

E. Sternemann, T. Jostmeier, C. Ruppert, H.T. Duc, T. Meier, M. Betz, Physical Review B (2013)

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2012

Photonic crystal waveguides intersection for resonant quantum dot optical spectroscopy detection

X. Song, S. Declair, T. Meier, A. Zrenner, J. Förstner, Optics Express (2012), 20(13), 14130-14136

Using a finite-difference time-domain method, we theoretically investigate the optical spectra of crossing perpendicular photonic crystal waveguides with quantum dots embedded in the central rod. The waveguides are designed so that the light mainly propagates along one direction and the cross talk is greatly reduced in the transverse direction. It is shown that when a quantum dot (QD) is resonant with the cavity, strong coupling can be observed via both the transmission and crosstalk spectrum. If the cavity is far off-resonant from the QD, both the cavity mode and the QD signal can be detected in the transverse direction since the laser field is greatly suppressed in this direction. This structure could have strong implications for resonant excitation and in-plane detection of QD optical spectroscopy.


Engineering high harmonic generation in semiconductors via pulse shaping

M. Reichelt, A. Hildebrandt, A. Walther, J. Förstner, T. Meier, in: Ultrafast Phenomena and Nanophotonics XVI, Proc. SPIE 8260, 2012, pp. 82601L

Paper Abstract High harmonic generation is investigated for a two-band model of a semiconductor nanostructure. Similar to an atomic two-level system, the semiconductor emits high harmonic radiation. We show how one can specifically enhance the emission for a given frequency by applying a non-trivially shaped laser pulse. Therefore, the semiconductor Bloch equations including the interband and additionally the intraband dynamics are solved numerically and the spectral shape of the input pulse is computed via an optimization algorithm. It is demonstrated that desired emission frequencies can be favored even though the overall input power is kept constant. We also suggest special metallic nano geometries to achieve enhanced localized optical fields. They are found by geometric optimization.


Collective Effects in Second-Harmonic Generation from Split-Ring-Resonator Arrays

S. Linden, F.B.P. Niesler, J. Förstner, Y. Grynko, T. Meier, M. Wegener, Physical Review Letters (2012), 109(1), pp. 015502

Optical experiments on second-harmonic generation from split-ring-resonator square arrays show a nonmonotonic dependence of the conversion efficiency on the lattice constant. This finding is interpreted in terms of a competition between dilution effects and linewidth or near-field changes due to interactions among the individual elements in the array.


Near-field coupling and second-harmonic generation in split-ring resonator arrays

Y. Grynko, T. Meier, S. Linden, F.B.P. Niesler, M. Wegener, J. Förstner, AIP Conference Proceedings 1475, 2012, pp. 128-130

We simulate the linear and nonlinear optical response from split-ring resonator (SRR) arrays to study collective effects between the constituent SRRs that determine spectral properties of the second harmonic generation (SHG). We apply the Discontinuous Galerkin Time Domain (DGTD) method and the hydrodynamic Maxwell-Vlasov model to calculate the SHG emission. Our model is able to qualitatively reproduce and explain the non-monotonic dependence of the spectral SHG transmission measured experimentally for SRR arrays with different lattice constants


Optimization of the intensity enhancement in plasmonic nanoantennas

A. Hildebrandt, M. Reichelt, T. Meier, J. Förstner, AIP AIP Conference Proceedings 1475, 2012

We design the geometrical shape of plasmonic nanostructures to achieve field patterns with desired properties. For this, we combine Maxwell simulations and automatic optimization techniques. By allowing variations of the geometrical shape, which can be based on either boxes or arbitrary polygons, we maximize the desired objective.


Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping

M. Reichelt, A. Walther, T. Meier, Journal of the Optical Society of America B (2012), A36

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2011

Numerical analysis of coupled photonic crystal cavities

S. Declair, T. Meier, A. Zrenner, J. Förstner, Photonics and Nanostructures - Fundamentals and Applications (2011), 9(4), pp. 345-350

We numerically investigate the interaction dynamics of coupled cavities in planar photonic crystal slabs in different configurations. The single cavity is optimized for a long lifetime of the fundamental mode, reaching a Q-factor of ≈43, 000 using the method of gentle confinement. For pairs of cavities we consider several configurations and present a setup with strongest coupling observable as a line splitting of about 30 nm. Based on this configuration, setups with three cavities are investigated.


Intensity dependence of optically-induced injection currents in semiconductor quantum wells

M. Pochwala, H.T. Duc, J. Förstner, T. Meier, in: CLEO:2011 - Laser Applications to Photonic Applications, OSA, 2011

The intensity dependence of optically-induced injection currents in semiconductor quantum wells is investigated numerically. Oscillatory behavior of the electron charge current transients as function of intensity and time is predicted and explained.


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