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Exciton Dynamics In Gaas Quantum Wells
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Book Synopsis Exciton Transport Phenomena in GaAs Coupled Quantum Wells by : Jason Leonard
Download or read book Exciton Transport Phenomena in GaAs Coupled Quantum Wells written by Jason Leonard and published by Springer. This book was released on 2017-11-02 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents results crucial to the emerging field of indirect excitons. These specially designed quasiparticles give the unique opportunity to study fundamental properties of quantum degenerate Bose gases in semiconductors. Furthermore, indirect excitons allow for the creation of novel optoelectronic devices where excitons are used in place of electrons. Excitonic devices are explored for the development of advanced signal processing seamlessly coupled with optical communication. The thesis presents and describes the author's imaging experiments that led to the discovery of spin transport of excitons. The many firsts presented herein include the first studies of an excitonic conveyer, leading to the discovery of the dynamical localization-delocalization transition for excitons, and the first excitonic ramp and excitonic diode with no energy-dissipating voltage gradient.
Book Synopsis Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures by : Jagdeep Shah
Download or read book Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures written by Jagdeep Shah and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrafast spectroscopy of semiconductors and semiconductor nanostructures is currently one of the most exciting areas of research in condensed-matter physics. Remarkable recent progress in the generation of tunable femtosecond pulses has allowed direct investigation of the most fundamental dynamical processes in semiconductors. This second edition presents the most striking recent advances in the techniques of ultrashort pulse generation and ultrafast spectroscopy; it discusses the physics of relaxation, tunneling and transport dynamics in semiconductors and semiconductor nanostructures following excitation by femtosecond laser pulses.
Book Synopsis Excitons in Coupled Double Quantum Wells by : Sang Yup Kim
Download or read book Excitons in Coupled Double Quantum Wells written by Sang Yup Kim and published by . This book was released on 2001 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exciton Transport Phenomena in GaAs Coupled Quantum Wells by : Jason Leonard
Download or read book Exciton Transport Phenomena in GaAs Coupled Quantum Wells written by Jason Leonard and published by Springer. This book was released on 2019-06-04 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents results crucial to the emerging field of indirect excitons. These specially designed quasiparticles give the unique opportunity to study fundamental properties of quantum degenerate Bose gases in semiconductors. Furthermore, indirect excitons allow for the creation of novel optoelectronic devices where excitons are used in place of electrons. Excitonic devices are explored for the development of advanced signal processing seamlessly coupled with optical communication. The thesis presents and describes the author's imaging experiments that led to the discovery of spin transport of excitons. The many firsts presented herein include the first studies of an excitonic conveyer, leading to the discovery of the dynamical localization-delocalization transition for excitons, and the first excitonic ramp and excitonic diode with no energy-dissipating voltage gradient.
Book Synopsis Physics Of Semiconductors, The - Proceedings Of The 22nd International Conference (In 3 Volumes) by : David J Lockwood
Download or read book Physics Of Semiconductors, The - Proceedings Of The 22nd International Conference (In 3 Volumes) written by David J Lockwood and published by World Scientific. This book was released on 1995-01-20 with total page 2858 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings review the progress in most aspects of semiconductor physics, including those related to materials, processing and devices. The conference continues the tradition of the ICPS series and these volumes include state-of-the-art lectures. The plenary and invited papers address areas of major interest.These volumes will serve as excellent material for researchers in semiconductor physics and related fields.
Book Synopsis Quantum Coherence Correlation and Decoherence in Semiconductor Nanostructures by : Toshihide Takagahara
Download or read book Quantum Coherence Correlation and Decoherence in Semiconductor Nanostructures written by Toshihide Takagahara and published by Academic Press. This book was released on 2003-02-10 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor nanostructures are attracting a great deal of interest as the most promising device with which to implement quantum information processing and quantum computing. This book surveys the present status of nanofabrication techniques, near field spectroscopy and microscopy to assist the fabricated nanostructures. It will be essential reading for academic and industrial researchers in pure and applied physics, optics, semiconductors and microelectronics. - The first up-to-date review articles on various aspects on quantum coherence, correlation and decoherence in semiconductor nanostructures
Book Synopsis Exciton Dynamics in Lead Halide Perovskite Nanocrystals by : Bernhard Johann Bohn
Download or read book Exciton Dynamics in Lead Halide Perovskite Nanocrystals written by Bernhard Johann Bohn and published by Springer Nature. This book was released on 2021-05-18 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Less than a decade ago, lead halide perovskite semiconductors caused a sensation: Solar cells exhibiting astonishingly high levels of efficiency. Recently, it became possible to synthesize nanocrystals of this material as well. Interestingly; simply by controlling the size and shape of these crystals, new aspects of this material literally came to light. These nanocrystals have proven to be interesting candidates for light emission. In this thesis, the recombination, dephasing and diffusion of excitons in perovskite nanocrystals is investigated using time-resolved spectroscopy. All these dynamic processes have a direct impact on the light-emitting device performance from a technology point of view. However, most importantly, the insights gained from the measurements allowed the author to modify the nanocrystals such that they emitted with an unprecedented quantum yield in the blue spectral range, resulting in the successful implementation of this material as the active layer in an LED. This represents a technological breakthrough, because efficient perovskite light emitters in this wavelength range did not exist before.
Book Synopsis Microcavities and Photonic Bandgaps: Physics and Applications by : J.G. Rarity
Download or read book Microcavities and Photonic Bandgaps: Physics and Applications written by J.G. Rarity and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The control of optical modes in microcavities or in photonic bandgap (PBG) materials is coming of age! Although these ideas could have been developed some time ago, it is only recently that they have emerged, due to advances in both atomic physics and in fabrication techniques, be it on the high-quality dielectric mirrors required for high-finesse Fabry Perot resonators or in semiconductor multilayer deposition methods. Initially the principles of quantum electro-dynamics (QED) were demonstrated in elegant atomic physics experiments. Now solid-state implementations are being investigated, with several subtle differences from the atomic case such as those due to their continuum of electronic states or the near Boson nature of their elementary excitations, the exciton. Research into quantum optics brings us ever newer concepts with potential to improve system performance such as photon squeezing, quantum cryptography, reversible taps, photonic de Broglie waves and quantum computers. The possibility of implementing these ideas with solid-state systems gives us hope that some could indeed find their way to the market, demonstrating the continuing importance of basic research for applications, be it in a somewhat more focused way than in earlier times for funding.
Book Synopsis Analysis and Design of Vertical Cavity Surface Emitting Lasers by : S. F. Yu
Download or read book Analysis and Design of Vertical Cavity Surface Emitting Lasers written by S. F. Yu and published by John Wiley & Sons. This book was released on 2003-09-04 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical, hands-on guidebook for the efficient modeling of VCSELs Vertical Cavity Surface Emitting Lasers (VCSELs) are a unique type of semiconductor laser whose optical output is vertically emitted from the surface as opposed to conventional edge-emitting semiconductor lasers. Complex in design and expensive to produce, VCSELs nevertheless represent an already widely used laser technology that promises to have even more significant applications in the future. Although the research has accelerated, there have been relatively few books written on this important topic. Analysis and Design of Vertical Cavity Surface Emitting Lasers seeks to encapsulate this growing body of knowledge into a single, comprehensive reference that will be of equal value for both professionals and academics in the field. The author, a recognized expert in the field of VCSELs, attempts to clarify often conflicting assumptions in order to help readers achieve the simplest and most efficient VCSEL models for any given problem. Highlights of the text include: * A clear and comprehensive theoretical treatment of VCSELs * Detailed derivations for understanding the operational principles of VCSELs * Mathematical models for the investigation of electrical, optical, and thermal properties of VCSELs * Case studies on the mathematical modeling of VCSELs and the implementation of simulation programs
Book Synopsis Advances in Solid State Physics 47 by : Rolf Haug
Download or read book Advances in Solid State Physics 47 written by Rolf Haug and published by Springer Science & Business Media. This book was released on 2008-01-23 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2007 Spring Meeting of the Arbeitskreis Festkörperphysik was held in Regensburg, Germany, March 2007, in conjunction with the Deutsche Physikalische Gesellschaft. It was one of the largest physics meetings in Europe. The present volume 47 of the Advances in Solid State Physics contains written versions of a large number of the invited talks and gives an overview of the present status of solid state physics where low-dimensional systems are dominating.
Book Synopsis Shallow Impurity Centers in Semiconductors by : A. Baldereschi
Download or read book Shallow Impurity Centers in Semiconductors written by A. Baldereschi and published by Elsevier. This book was released on 2012-12-02 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shallow Impurity Centers in Semiconductors presents the proceedings of the Second International Conference on Shallow Impurity Centers/Fourth Trieste IUPAP-ICTP Semiconductor Symposium, held at the International Center for Theoretical Physics in Trieste, Italy, on July 28 to August 1, 1986. The book presents the perspectives of some of the leading scientists in the field who address basic physical aspects and device implications, novel phenomena, recent experimental and theoretical techniques, and the behavior of impurities in new semiconductor materials. Organized into 22 chapters, the book begins with an overview of the early years of shallow impurity states before turning to a discussion of progress in spectroscopy of shallow centers in semiconductors since 1960. It then looks at theoretical and experimental aspects of hydrogen diffusion and shallow impurity passivation in semiconductors, along with optical excitation spectroscopy of isolated double donors in silicon. The book methodically walks the reader through recent research on double acceptors using near-, mid-, and far-infrared spectroscopy, the far-infrared absorption spectrum of elemental shallow donors and acceptors in germanium, and impurity spectra in stress-induced uniaxial germanium using Zeeman spectroscopy. Other papers focus on the theoretical properties of hydrogenic impurities in quantum wells, lattice relaxations at substitutional impurities in semiconductors, shallow bound excitons in silver halides, and the electronic structure of bound excitons in semiconductors. The book concludes with a chapter that reviews picosecond spectroscopy experiments performed in III-V compounds and alloy semiconductors. This volume will be useful to physicists and researchers who are working on shallow impurity centers in semiconductor physics.
Book Synopsis Optical Properties of 2D Systems with Interacting Electrons by : Wolfgang J. Ossau
Download or read book Optical Properties of 2D Systems with Interacting Electrons written by Wolfgang J. Ossau and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, held in St. Petersburg, Russia, 13-16 June 2002
Book Synopsis Optical Properties of Semiconductors by : G. Martinez
Download or read book Optical Properties of Semiconductors written by G. Martinez and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely recognized that an understanding of the optical pro perties of matter will give a great deal of important information re levant to the fundamental physical properties. This is especially true in semiconductor physics for which, due to the intrinsic low screening of these materials, the optical response is quite rich. Their spectra reflect indeed as well electronic as spin or phonon transitions. This is also in the semiconductor field that artificial structures have been recently developed, showing for the first time specific physical properties related to the low dimentionality of the electronic and vi bronic properties : with this respect the quantum and fractional quan tum Hall effects are among the most well known aspects. The associated reduced screening is also a clear manifestation of these aspects and as such favors new optical properties or at least significantly enhan ces some of them. For all these reasons, it appeared necessary to try to review in a global way what the optical investigation has brought today about the understanding of the physics of semiconductors. This volume collects the papers presented at the NATO Advanced study Inst i tut e on "Optical Properties of Semiconductors" held at the Ettore Majorana Centre, Erice, Sicily on March 9th to 20th, 1992. This school brought together 70 scientists active in research related to optical properties of semiconductors. There were 12 lecturers who pro vided the main contributions .
Book Synopsis Optics of Excitons in Confined Systems, Proceedings of the INT Meeting, Italy, 24-27 September 1991 by : Andrea D'Andrea
Download or read book Optics of Excitons in Confined Systems, Proceedings of the INT Meeting, Italy, 24-27 September 1991 written by Andrea D'Andrea and published by CRC Press. This book was released on 1992-03-26 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optics of Excitons in Confined Systems provides an overview of research in semiconductors that exhibit resonance enhanced optical nonlinearities in the frequency range close to the valence-conduction band gap. The book is divided into the following sections: quantum wells, wires, and dots; superlattices; nonlinear optical properties of confined systems; and effects of external fields on confined systems. Topics range from fundamental theory to more applied aspects of excitons in confined sytems.
Book Synopsis Encyclopedia of Modern Optics by : Bob D. Guenther
Download or read book Encyclopedia of Modern Optics written by Bob D. Guenther and published by Academic Press. This book was released on 2018-02-14 with total page 2253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Modern Optics, Second Edition, Five Volume Set provides a wide-ranging overview of the field, comprising authoritative reference articles for undergraduate and postgraduate students and those researching outside their area of expertise. Topics covered include classical and quantum optics, lasers, optical fibers and optical fiber systems, optical materials and light-emitting diodes (LEDs). Articles cover all subfields of optical physics and engineering, such as electro-optical design of modulators and detectors. This update contains contributions from international experts who discuss topics such as nano-photonics and plasmonics, optical interconnects, photonic crystals and 2D materials, such as graphene or holy fibers. Other topics of note include solar energy, high efficiency LED’s and their use in illumination, orbital angular momentum, quantum optics and information, metamaterials and transformation optics, high power fiber and UV fiber lasers, random lasers and bio-imaging. Addresses recent developments in the field and integrates concepts from fundamental physics with applications for manufacturing and engineering/design Provides a broad and interdisciplinary coverage of specialist areas Ensures that the material is appropriate for new researchers and those working in a new sub-field, as well as those in industry Thematically arranged and alphabetically indexed, with cross-references added to facilitate ease-of-use
Book Synopsis Optical and Electrical Properties of Nanoscale Materials by : Alain Diebold
Download or read book Optical and Electrical Properties of Nanoscale Materials written by Alain Diebold and published by Springer Nature. This book was released on 2022-01-10 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the optical and electrical properties of nanoscale materials with an emphasis on how new and unique material properties result from the special nature of their electronic band structure. Beginning with a review of the optical and solid state physics needed for understanding optical and electrical properties, the book then introduces the electronic band structure of solids and discusses the effect of spin orbit coupling on the valence band, which is critical for understanding the optical properties of most nanoscale materials. Excitonic effects and excitons are also presented along with their effect on optical absorption. 2D materials, such as graphene and transition metal dichalcogenides, are host to unique electrical properties resulting from the electronic band structure. This book devotes significant attention to the optical and electrical properties of 2D and topological materials with an emphasis on optical measurements, electrical characterization of carrier transport, and a discussion of the electronic band structures using a tight binding approach. This book succinctly compiles useful fundamental and practical information from one of the fastest growing research topics in materials science and is thus an essential compendium for both students and researchers in this rapidly moving field.
Book Synopsis Spin Physics in Semiconductors by : Mikhail I. Dyakonov
Download or read book Spin Physics in Semiconductors written by Mikhail I. Dyakonov and published by Springer. This book was released on 2017-10-04 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an extensive introduction to the extremely rich and intriguing field of spin-related phenomena in semiconductors. In this second edition, all chapters have been updated to include the latest experimental and theoretical research. Furthermore, it covers the entire field: bulk semiconductors, two-dimensional semiconductor structures, quantum dots, optical and electric effects, spin-related effects, electron-nuclei spin interactions, Spin Hall effect, spin torques, etc. Thanks to its self-contained style, the book is ideally suited for graduate students and researchers new to the field.
