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Kluwer eBooks

Coherent control in atoms, molecules, and semiconductors : proceedings of an international workshop held in Chicago, USA, 19-22 May 1998

W. Pötz, W. Andreas Schroeder

Published Jan 1, 1999• 2 citations
OpenAlex

Abstract

Preface. Part I: Atomic and Molecular systems. Scenarios in Coherent Control P. Brumer, M. Shapiro. Quantum Control in Atomic Systems D. Charalambidis, et al. Laser-phase-sensitive Coherent Control of Photoion Product States in 2-Photon vs. 2-Photon Ionization of Atomic Barium, F. Wang, et al. Coherent Phase control of Photoionization and Photodissociation R.J. Gordon, et al. Coherent Control of Atomic Photoionization and Autoionization P. Lambropoulos, T. Nakajima. Lasing Without Inversion via Interference of Double-Dark Resonances in Atomic and Quantum Well Systems M.O. Scully, et al. Part II: Coherent Control in Semiconductors. Coherence Control of Free Carriers in Bulk Semiconductors H.M. van Driel, et al. Coherent Control of 2D Excitons Probed by Time-Resolved Secondary Emission X. Marie, et al. Many-Body Effects in the Ultrafast Population Transfer in p-Doped Semiconductor Quantum Wells R. Binder, M. Lindberg. Coherent Control of Heavy-Light Hole and Phonon Quantum Beats T. Kuhn, et al. Coherent Control Schemes in Semiconductor Double Wells X. Hu, W. Poetz. Terahertz-Control of Charge-Carrier Wavepackets in Semiconductor Quantum Wells S. Hughes, D.S. Citrin. Microcavity Exciton-Polariton H. Cao. Part III: Coherent Phenomena and Related Topics. Coherent Control of Quantum Localization M. Holthaus. Tunneling of Low-Energetic Electrons in the Presence of Intense Laser Fields: The Formation of Dynamical Barrier States M. Wagner. Hopping Mechanism of Coherent Photovoltaic Effect and Photoinduced Polar Anisotropy in Glass E.M. Baskin, M.V. Entin. Heterodyning Scheme Employing Quantum Interference J.B. Khurgin, et al. Generation of Widely Tunable THz-Wave Using Nonlinear Optics K. Kawase, H.Ito. List of Participants.

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Laser-Phase-Insensitive Coherent Control of Photoion Product States In 2-photon vs. 2-Photon Ionization of Atomic Barium

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Many-body effects in low-order optical nonlinearities of semiconductor quantum wells

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•Jan 1, 2003•0 citations
Preface. Part I: Atomic and Molecular systems. Scenarios in Coherent Control P. Brumer, M. Shapiro. Quantum Control in Atomic Systems D. Charalambidis, et al. Laser-phase-sensitive Coherent Control of Photoion Product States in 2-Photon vs. 2-Photon Ionization of Atomic Barium, F. Wang, et al. Coherent Phase control of Photoionization and Photodissociation R.J. Gordon, et al. Coherent Control of Atomic Photoionization and Autoionization P. Lambropoulos, T. Nakajima. Lasing Without Inversion via Interference of Double-Dark Resonances in Atomic and Quantum Well Systems M.O. Scully, et al. Part II: Coherent Control in Semiconductors. Coherence Control of Free Carriers in Bulk Semiconductors H.M. van Driel, et al. Coherent Control of 2D Excitons Probed by Time-Resolved Secondary Emission X. Marie, et al. Many-Body Effects in the Ultrafast Population Transfer in p-Doped Semiconductor Quantum Wells R. Binder, M. Lindberg. Coherent Control of Heavy-Light Hole and Phonon Quantum Beats T. Kuhn, et al. Coherent Control Schemes in Semiconductor Double Wells X. Hu, W. Poetz. Terahertz-Control of Charge-Carrier Wavepackets in Semiconductor Quantum Wells S. Hughes, D.S. Citrin. Microcavity Exciton-Polariton H. Cao. Part III: Coherent Phenomena and Related Topics. Coherent Control of Quantum Localization M. Holthaus. Tunneling of Low-Energetic Electrons in the Presence of Intense Laser Fields: The Formation of Dynamical Barrier States M. Wagner. Hopping Mechanism of Coherent Photovoltaic Effect and Photoinduced Polar Anisotropy in Glass E.M. Baskin, M.V. Entin. Heterodyning Scheme Employing Quantum Interference J.B. Khurgin, et al. Generation of Widely Tunable THz-Wave Using Nonlinear Optics K. Kawase, H.Ito. List of Participants.
Summary form only given. The coherence decay of optically excited electronic systems provides one of the most powerful tools to investigate interaction processes of excited states. In semiconductors, the optical coherence phenomena are usually investigated by nonlinear techniques such as four wave mixing (FWM), photon echo, or reflectivity experiments. Exciton-phonon, exciton-exciton, or exciton-free carriers scattering processes have been explored in recent years with these techniques. As demonstrated recently, a direct measurement of the optical dephasing time can be obtained through the temporal coherent control of electronic excitations. In these experiments, the emission following the excitation by an ultrashort optical pulse sequence, is detected in a non-specular direction (secondary emission). This provides an alternative approach to FWM techniques, which allows us to analyse the scattering processes either with phonons or due to mutual collisions. Using the coherent control technique monitored through the secondary emission (SE), we report on the coherent dynamics of excitons in bare quantum wells (QW) and compare it to that of exciton-polaritons in microcavity (MC) embedded quantum wells.
Preface.Preliminaries of the Interaction of Light with Matter.Weak-Field Photodissociation.Weak-Field Coherent Control.Optimal Control Theory.Decoherence and Loss of Control.Case Studies in Coherent Control.Coherent Control of Bimolecular Processes.Coherent Control of the Synthesis and Purification of Chiral Molecules.Coherent Control Beyond the Weak-Field Regime: Bound States and Resonances.Photodissociation Beyond the Weak-Field Regime.Coherent Control Beyond the Weak-Field Regime: The Continuum.Strong-Field Coherent Control.Case Studies in Optimal Control.References.Author Index.Subject Index.
Written by two of the world's leading researchers in the field, this is a systematic introduction to the fundamental principles of coherent control, and to the underlying physics and chemistry.This fully updated second edition is enhanced by 80% and covers the latest techniques and applications, including nanostructures, attosecond processes, optical control of chirality, and weak and strong field quantum control. Developments and challenges in decoherence-sensitive condensed phase control as well as in bimolecular control are clearly described.Indispensable for atomic, molecular and chemical
Abstract : The International Workshop on Coherent Control of Charge Carrier Dynamics in Semiconductors was held May 18-22,1998 at the University of Illinois at Chicago. An international and multi-disciplinary group of scientists presented recent results on coherent control phenomena in atoms, molecules, and semiconductors. Pertinent open physical questions, as well as potential technological applications and the future of the field were discussed. Referred proceedings were published under the title Coherent Control in Atoms, Molecules, and Semiconductors, by Kluwer in spring of 1999 (ISPN 0-7923-5649-7)
This dissertation addresses both fundamental aspects of Coulomb correlations in semiconductor quantum wells and more practical aspects of theoretical analysis of semiconductor optoelectronic devices. After introducing the subject, we present and evaluate a state-of-the-art theory of the third order coherent optical response of a semiconductor quantum well based on the Dynamics Controlled Truncation (DCT) scheme. Already in the third order (the so-called chi (3)) regime, semiconductors exhibit a number of many-body Coulomb correlation effects. Their manifestation in various multi-pulse experimental configurations, customarily used in ultrafast semiconductor spectroscopy, has been an important component of this thesis. Coherent optical effects in a semiconductor 3-band system based on the heavy-hole, light-hole and conduction bands were investigated. The quantum beats in the time-integrated differential transmission signal were analyzed and compared with experimental data obtained at the University of Iowa. Fundamental differences from corresponding quantum beats in atomic 3-level systems were found. Also, the analysis of experimental data (obtained at the University of Arizona) of the coupled heavy-hole-light-hole optical Stark shift revealed evidence of intervalence band coherences, an analog of Raman coherences in atomic 3-levels systems. A scheme for realization of electromagnetically-induced transparency (EIT) based on the interference of excitonic and biexcitonic coherences was proposed. Corresponding experiments performed at the University of Oregon showed indeed a considerable coherent reduction of excitonic absorption. Furthermore, an extension of the chi(3) analysis revealed an energy renormalization of the biexciton, in good agreement with the corresponding experiment. A microscopic analysis of polarization dynamics in time-resolved four-wave mixing signals was performed, revealing interesting implications for the biexciton dephasing in addition to the significance of many-body correlations. In the case of four-wave mixing in semiconductor microcavities, our theoretical analysis in conjunction with experimental data obtained at the University of Tokyo gave us indications for a significant shortcoming of the second Born approximation (2nd BA) applied to two-exciton Coulomb correlations in a thin semiconductor quantum well, in agreement with the general knowledge of the qualitative failure of the 2nd BA in systems with short-range interaction in two dimensions. We also analyzed a novel all-optical switching technique based on the nonlinear polarization rotation. Apart from identifying the many-particle processes relevant for the switch operation in the chi(3) regime, we proposed ways to further optimize the switch.