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Investigation Of Semiconductor Nanostructures Using Optical Two Dimensional Fourier Transform Spectroscopy
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Book Synopsis Investigation of Semiconductor Nanostructures Using Optical Two-dimensional Fourier-transform Spectroscopy by : Irina Kuznetsova
Download or read book Investigation of Semiconductor Nanostructures Using Optical Two-dimensional Fourier-transform Spectroscopy written by Irina Kuznetsova and published by . This book was released on 2007 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Semiconductor Nanostructures Using Optical Two-dimensional Fourier-transform Spectroscopy by :
Download or read book Investigation of Semiconductor Nanostructures Using Optical Two-dimensional Fourier-transform Spectroscopy written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this work is the exploration of the recently developed optical two-dimensional Fourier-transform spectroscopy (2D-FTS) method and its application in the field of semiconductor physics. The main idea of 2D-FTS is to gain information about the excited system and disentangle different contributions to couplings within the excited many-body system. The power of the 2D-FTS method is demonstrated for an example of a semiconductor nanostructure such as quantum wells. It has been shown that by applying 2D-FTS we are able to describe the action of disorder and of the Coulomb correlations in detail.
Book Synopsis Optical Properties of Semiconductor Nanostructures by : Marcin L. Sadowski
Download or read book Optical Properties of Semiconductor Nanostructures written by Marcin L. Sadowski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical methods for investigating semiconductors and the theoretical description of optical processes have always been an important part of semiconductor physics. Only the emphasis placed on different materials changes with time. Here, a large number of papers are devoted to quantum dots, presenting the theory, spectroscopic investigation and methods of producing such structures. Another major part of the book reflects the growing interest in diluted semiconductors and II-IV nanosystems in general. There are also discussions of the fascinating field of photonic crystals. `Classical' low dimensional systems, such as GsAs/GaAlAs quantum wells and heterostructures, still make up a significant part of the results presented, and they also serve as model systems for new phenomena. New materials are being sought, and new experimental techniques are coming on stream, in particular the combination of different spectroscopic modalities.
Book Synopsis Novel Tools for Ultrafast Spectroscopy by : Thomas William Jarvis
Download or read book Novel Tools for Ultrafast Spectroscopy written by Thomas William Jarvis and published by . This book was released on 2011 with total page 1362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exciton dynamics in semiconductor nanostructures are dominated by the effects of many-body physics. The application of coherent spectroscopic tools, such as two-dimensional Fourier transform spectroscopy (2dFTS), to the study of these systems can reveal signatures of these effects, and in combination with sophisticated theoretical modeling, can lead to more complete understanding of the behaviour of these systems. 2dFTS has previously been applied to the study of GaAs quantum well samples. In this thesis, we outline a precis of the technique before describing our own experiments using 2dFTS in a partially collinear geometry. This geometry has previously been used to study chemical systems, but we believe these experiments to be the first such performed on semiconductor samples. We extend this technique to a reflection mode 2dFTS experiment, which we believe to be the first such measurement. In order to extend the techniques of coherent spectroscopy to structured systems, we construct an experimental apparatus that permits us to control the beam geometry used to perform four-wave mixing reflection measurements. To isolate extremely weak signals from intense background fields, we extend a conventional lock-in detection scheme to one that treats the optical fields exciting the sample on an unequal footing. To the best of our knowledge, these measurements represent a novel spectroscopic tool that has not previously been described.
Book Synopsis Optical Spectroscopy of Semiconductor Nanostructures by : Eougenious L. Ivchenko
Download or read book Optical Spectroscopy of Semiconductor Nanostructures written by Eougenious L. Ivchenko and published by Alpha Science Int'l Ltd.. This book was released on 2005 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume looks at optical spectroscopy of semiconductir nanostructures. Some of the topics it covers include: kingdom of nanostructures; quantum confinement in low-dimensional systems; resonant light reflection; and transmission and absorption.
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 1999-06 with total page 552 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 Two-Dimensional Materials in Nanophotonics by : Yuerui Lu
Download or read book Two-Dimensional Materials in Nanophotonics written by Yuerui Lu and published by CRC Press. This book was released on 2019-10-31 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional (2D) materials have attracted tremendous interest since the study of graphene in the early 21st century. With their thickness in the angstrom-to-nanometer range, 2D materials, including graphene, transition metal dichalcogenides, phosphorene, silicene, and other inorganic and organic materials, can be an ideal platform to study fundamental many-body interactions because of reduced screening and can also be further engineered for nanophotonic applications. This book compiles research outcomes of leading groups in the field of 2D materials for nanophotonic physics and devices. It describes research advances of 2D materials for various nanophotonic applications, including ultrafast lasers, atomically thin optical lenses, and gratings to inelastically manipulate light propagation, their integrations with photonic nanostructures, and light–matter interactions. The book focuses on actual applications, while digging into the physics underneath. It targets advanced undergraduate- and graduate-level students of nanotechnology and researchers in nanotechnology, physics, and chemistry, especially those with an interest in 2D materials.
Book Synopsis Semiconductor Photonics of Nanomaterials and Quantum Structures by : Arash Rahimi-Iman
Download or read book Semiconductor Photonics of Nanomaterials and Quantum Structures written by Arash Rahimi-Iman and published by Springer Nature. This book was released on 2021-04-23 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the wider field of functional nanomaterials sciences, with a strong emphasis on semiconductor photonics. Whether you are studying photonic quantum devices or just interested in semiconductor nanomaterials and their benefits for optoelectronic applications, this book offers you a pedagogical overview of the relevant subjects along with topical reviews. The book discusses different yet complementary studies in the context of ongoing international research efforts, delivering examples from both fundamental and applied research to a broad readership. In addition, a hand-full of useful optical techniques for the characterization of semiconductor quantum structures and materials are addressed. Moreover, nanostructuring methods for the production of low-dimensional systems, which exhibit advantageous properties predominantly due to quantum effects, are summarized. Science and engineering professionals in the interdisciplinary domains of nanotechnology, photonics, materials sciences, and quantum physics can familiarize themselves with selected highlights with eyes towards photonic applications in the fields of two-dimensional materials research, light–matter interactions, and quantum technologies.
Book Synopsis Correlated Exciton Dynamics in Semiconductor Nanostructures by : Patrick Wen (Ph. D.)
Download or read book Correlated Exciton Dynamics in Semiconductor Nanostructures written by Patrick Wen (Ph. D.) and published by . This book was released on 2013 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorption and dissipation of energy in semiconductor nanostructures are often determined by excited electron dynamics. In semiconductors, one fundamentally important electronic state is an exciton, an excited electron bound to a positively charged vacancy. Excitons can become correlated with other excitons, mutually influencing one another and exhibiting collective properties. The focus of this dissertation concerns the origins, effects, and control of correlated excitons in semiconductor nanostructures. Correlated Coulomb interactions can occur between excitons, resulting in energy shifts and dephasing in each exciton. Two-dimensional Fourier-transform optical spectroscopy is a powerful tool to understand Coulomb correlations; the technique relates exciton dynamics during distinct time periods. However, the technique is still limited by weak spectral features. Using two-dimensional pulse shaping methods, waveforms of excitation fields were tailored to selectively amplify spectral features of correlated exciton states in gallium arsenide quantum wells. With the aid of theoretical models, 2D spectra of quantum wells revealed clear contributions of Coulomb correlations to the exciton dynamics. Time and power dependent properties of the 2D spectra indicate several mechanisms for exciton interactions that are neglected in commonly used theoretical models. If a semiconductor material is fabricated within a microcavity, optical fields can be trapped around the semiconductor, strongly distorting properties of the semiconductor excitons and forming new quasi-particles called exciton-polaritons. Theoretical work has suggested exciton-polariton Coulomb correlation strengths can be reduced compared to that of excitons. Using two-dimensional Fourier-transform optical spectroscopy, control of Coulomb correlations was demonstrated by varying the cavity structure. The cavity fields were also shown to induce high-order correlated interactions among exciton-polaritons. A macroscopic quantum degenerate system of exciton-polaritons can also become correlated, exhibiting long-range order typical of a Bose-Einstein condensate. However, unlike a Bose-Einstein condensate, exciton-polartions are not typically in thermal equilibrium. Using a sample with exciton-polariton lifetimes longer than previous samples, the macroscopic behavior of exciton-polaritons was investigated by imaging the exciton-polariton photoluminescence. Condensation depended significantly on spatially-varying potential energy surfaces. Using optically-induced harmonic potential barriers, thermal equilibrium among exciton-polaritons was achieved, with exciton-polaritons forming a Bose-Einstein distribution at densities above and below the condensation phase transition.
Book Synopsis Nanoscale Spectroscopy and Its Applications to Semiconductor Research by : Y. Watanabe
Download or read book Nanoscale Spectroscopy and Its Applications to Semiconductor Research written by Y. Watanabe and published by Springer. This book was released on 2008-01-11 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fabrication technologies for nanostructured devices have been developed recently, and the electrical and optical properties of such nanostructures are a subject of advanced research. This book describes the different approaches to spectroscopic microscopy, i.e., Electron Beam Probe Spectroscopy, Spectroscopic Photoelectron Microscopy, and Scanning Probe Spectroscopy. It will be useful as a compact source of reference for the experienced reseracher, taking into account at the same time the needs of postgraduate students and nonspecialist researchers by using a tutorial approach throughout.
Book Synopsis Handbook Of Instrumentation And Techniques For Semiconductor Nanostructure Characterization (In 2 Volumes) by : Richard A Haight
Download or read book Handbook Of Instrumentation And Techniques For Semiconductor Nanostructure Characterization (In 2 Volumes) written by Richard A Haight and published by World Scientific. This book was released on 2011-11-28 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: '... These volumes provide the very latest in this critical technology and are an invaluable resource for scientists in both academia and industry concerned with the semiconductor future and all of science.'Foreword by Leonard C Feldman (Director Institute for Advanced Materials, Devices and Nanotechnology, Rutgers University, USA)HighlightsAs we delve more deeply into the physics and chemistry of functional materials and processes, we are inexorably driven to the nanoscale. And nowhere is the development of instrumentation and associated techniques more important to scientific progress than in the area of nanoscience. The dramatic expansion of efforts to peer into nanoscale materials and processes has made it critical to capture and summarize the cutting-edge instrumentation and techniques that have become indispensable for scientific investigation in this arena. This Handbook is a key resource developed for scientists, engineers and advanced graduate students in which eminent scientists present the forefront of instrumentation and techniques for the study of structural, optical and electronic properties of semiconductor nanostructures.
Author :Nicholas Andrew Wasley Publisher :Springer Science & Business Media ISBN 13 :3319015141 Total Pages :139 pages Book Rating :4.3/5 (19 download)
Book Synopsis Nano-photonics in III-V Semiconductors for Integrated Quantum Optical Circuits by : Nicholas Andrew Wasley
Download or read book Nano-photonics in III-V Semiconductors for Integrated Quantum Optical Circuits written by Nicholas Andrew Wasley and published by Springer Science & Business Media. This book was released on 2013-09-05 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis breaks new ground in the physics of photonic circuits for quantum optical applications. The photonic circuits are based either on ridge waveguides or photonic crystals, with embedded quantum dots providing the single qubit, quantum optical emitters. The highlight of the thesis is the first demonstration of a spin-photon interface using an all-waveguide geometry, a vital component of a quantum optical circuit, based on deterministic single photon emission from a single quantum dot. The work makes a further important contribution to the field by demonstrating the effects and limitations that inevitable disorder places on photon propagation in photonic crystal waveguides, a further key component of quantum optical circuits. Overall the thesis offers a number of highly novel contributions to the field; those on chip circuits may prove to be the only means of scaling up the highly promising quantum-dot-based quantum information technology.
Book Synopsis Handbook of Self Assembled Semiconductor Nanostructures for Novel Devices in Photonics and Electronics by : Mohamed Henini
Download or read book Handbook of Self Assembled Semiconductor Nanostructures for Novel Devices in Photonics and Electronics written by Mohamed Henini and published by Elsevier. This book was released on 2011-07-28 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: The self-assembled nanostructured materials described in this book offer a number of advantages over conventional material technologies in a wide range of sectors. World leaders in the field of self-organisation of nanostructures review the current status of research and development in the field, and give an account of the formation, properties, and self-organisation of semiconductor nanostructures. Chapters on structural, electronic and optical properties, and devices based on self-organised nanostructures are also included. Future research work on self-assembled nanostructures will connect diverse areas of material science, physics, chemistry, electronics and optoelectronics. This book will provide an excellent starting point for workers entering the field and a useful reference to the nanostructured materials research community. It will be useful to any scientist who is involved in nanotechnology and those wishing to gain a view of what is possible with modern fabrication technology. Mohamed Henini is a Professor of Applied Physics at the University of Nottingham. He has authored and co-authored over 750 papers in international journals and conference proceedings and is the founder of two international conferences. He is the Editor-in-Chief of Microelectronics Journal and has edited three previous Elsevier books. Contributors are world leaders in the field Brings together all the factors which are essential in self-organisation of quantum nanostructures Reviews the current status of research and development in self-organised nanostructured materials Provides a ready source of information on a wide range of topics Useful to any scientist who is involved in nanotechnology Excellent starting point for workers entering the field Serves as an excellent reference manual
Book Synopsis Multidimensional Spectroscopy of Semiconductor Quantum Dots by : Jason Michael Bylsma
Download or read book Multidimensional Spectroscopy of Semiconductor Quantum Dots written by Jason Michael Bylsma and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The coherent properties of semiconductor nanostructures are inherently difficult to measure and one-dimensional spectroscopies are often unable to separate inhomogeneous and homogeneous linewidths. We have refined and improved a method of performing multidimensional Fourier transform spectroscopy based on four-wave mixing (FWM) experiments in the box geometry. We have modified our system with broadband beamsplitters in all interferometer arms, high-resolution translation stages and the ability to work in reflection geometry. By improving the phase-stability of our setup and scanning pulse delays with sub-optical cycle precision, we are able to reproduce 2DFT spectra of GaAs multiple quantum wells. With the FWM signal reflected from the sample surface instead of transmitted through, we show that very low pulse powers can be used to generate coherent 2D signals from colloidal PbS quantum dots. Dephasing times are particularly difficult to measure in small colloidal quantum dots due to environmental broadening effects from the colloidal growth. We show that low-temperature pure excitonic dephasing can be measured via time-integrated measurements as well as from the cross-diagonal linewidths of 2DFT spectra. Ultrafast sub-picosecond dephasing times are measured at 5 K in 3 nm PbS quantum dots, while excitation-density-dependence is investigated in these dots. By retrieving the global phase with an all-optical method, we are able to retrieve the real-part 2D spectra of PbS quantum dots.
Book Synopsis Applied Spectroscopy and the Science of Nanomaterials by : Prabhakar Misra
Download or read book Applied Spectroscopy and the Science of Nanomaterials written by Prabhakar Misra and published by Springer. This book was released on 2014-10-21 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on several areas of intense topical interest related to applied spectroscopy and the science of nanomaterials. The eleven chapters in the book cover the following areas of interest relating to applied spectroscopy and nanoscience: · Raman spectroscopic characterization, modeling and simulation studies of carbon nanotubes, · Characterization of plasma discharges using laser optogalvanic spectroscopy, · Fluorescence anisotropy in understanding protein conformational disorder and aggregation, · Nuclear magnetic resonance spectroscopy in nanomedicine, · Calculation of Van der Waals interactions at the nanoscale, · Theory and simulation associated with adsorption of gases in nanomaterials, · Atom-precise metal nanoclusters, · Plasmonic properties of metallic nanostructures, two-dimensional materials, and their composites, · Applications of graphene in optoelectronic devices and transistors, · Role of graphene in organic photovoltaic device technology, · Applications of nanomaterials in nanomedicine.
Book Synopsis Semiconductor Nanostructures by : Dieter Bimberg
Download or read book Semiconductor Nanostructures written by Dieter Bimberg and published by Springer Science & Business Media. This book was released on 2008-06-03 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reducing the size of a coherently grown semiconductor cluster in all three directions of space to a value below the de Broglie wavelength of a charge carrier leads to complete quantization of the energy levels, density of states, etc. Such “quantum dots” are more similar to giant atoms in a dielectric cage than to classical solids or semiconductors showing a dispersion of energy as a function of wavevector. Their electronic and optical properties depend strongly on their size and shape, i.e. on their geometry. By designing the geometry by controlling the growth of QDs, absolutely novel possibilities for material design leading to novel devices are opened. This multiauthor book written by world-wide recognized leaders of their particular fields and edited by the recipient of the Max-Born Award and Medal 2006 Professor Dieter Bimberg reports on the state of the art of the growing of quantum dots, the theory of self-organised growth, the theory of electronic and excitonic states, optical properties and transport in a variety of materials. It covers the subject from the early work beginning of the 1990s up to 2006. The topics addressed in the book are the focus of research in all leading semiconductor and optoelectronic device laboratories of the world.
Book Synopsis Advances in Semiconductor Nanostructures by : Alexander V. Latyshev
Download or read book Advances in Semiconductor Nanostructures written by Alexander V. Latyshev and published by Elsevier. This book was released on 2016-11-10 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Semiconductor Nanostructures: Growth, Characterization, Properties and Applications focuses on the physical aspects of semiconductor nanostructures, including growth and processing of semiconductor nanostructures by molecular-beam epitaxy, ion-beam implantation/synthesis, pulsed laser action on all types of III–V, IV, and II–VI semiconductors, nanofabrication by bottom-up and top-down approaches, real-time observations using in situ UHV-REM and high-resolution TEM of atomic structure of quantum well, nanowires, quantum dots, and heterostructures and their electrical, optical, magnetic, and spin phenomena. The very comprehensive nature of the book makes it an indispensable source of information for researchers, scientists, and post-graduate students in the field of semiconductor physics, condensed matter physics, and physics of nanostructures, helping them in their daily research. Presents a comprehensive reference on the novel physical phenomena and properties of semiconductor nanostructures Covers recent developments in the field from all over the world Provides an International approach, as chapters are based on results obtained in collaboration with research groups from Russia, Germany, France, England, Japan, Holland, USA, Belgium, China, Israel, Brazil, and former Soviet Union countries
