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Author :
Publisher :
ISBN 13 :
Total Pages : 69 pages
Book Rating : 4.:/5 (924 download)
Download or read book Modelling of Optical Properties of Strained Quantum Wells Including Free Carrier and Electric Field Effects written by and published by . This book was released on 1996 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. O. Manasreh
Publisher : CRC Press
ISBN 13 : 9789056995676
Total Pages : 606 pages
Book Rating : 4.9/5 (956 download)
Download or read book Strained-Layer Quantum Wells and Their Applications written by M. O. Manasreh and published by CRC Press. This book was released on 1997-12-23 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor devices based on lattice mismatched heterostructures have been the subject of much study. This volume focuses on the physics, technology and applications of strained layer quantum wells and superlattices, featuring chapters on aspects ranging from theoretical modeling of quantum-well lasers to materials characterization and assessment by the most prominent researchers in the field. It is an essential reference for both researchers and students of semiconductor lasers, sensors and communications.
Author : Desmond Michael Ryan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (536 download)
Download or read book Electronic States and Optical Properties of Quantum Well Heterostructures with Strain Electric Field Effects written by Desmond Michael Ryan and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1102 pages
Book Rating : 4.X/5 (2 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander Shik
Publisher : World Scientific
ISBN 13 : 9814496863
Total Pages : 106 pages
Book Rating : 4.8/5 (144 download)
Download or read book Quantum Wells: Physics And Electronics Of Two-dimensional Systems written by Alexander Shik and published by World Scientific. This book was released on 1998-01-09 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable book is devoted to the physics, technology and device applications of semiconductor structures with ultrathin layers where the electronic properties are governed by the quantum-mechanical laws. Such structures called quantum wells or structures with the two-dimensional electron gas, have become one of the most actively investigated objects in modern solid state physics. Electronic properties of quantum wells differ dramatically from those of bulk semiconductors, which allows one to observe new types of physical phenomena, such as the quantum Hall effect and many other so-far-unknown kinetic and optical effects. This, in turn, offers wide opportunities for creating semiconductor devices based on new principles, and it has give birth to the new branch of electronics called nanoelectronics.
Author : Arnel Angud Salvador
Publisher :
ISBN 13 :
Total Pages : 226 pages
Book Rating : 4.:/5 (338 download)
Download or read book Optical Properties of GaAs Coupled Quantum Wells and Superlattices written by Arnel Angud Salvador and published by . This book was released on 1994 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark P. Mullane
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (795 download)
Download or read book Many-body Effects and Optical Nonlinearities in Semiconductor Quantum Wells written by Mark P. Mullane and published by . This book was released on 2000 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive model for the semiconductor quantum well is developed, which includes the effects of quantum confinement and strain, as well as many-body (Coulomb) effects. The model is applied in two regimes: the high carrier density regime associated with gain, and the low carrier density regime where the medium is absorbing. The linewidth enhancement factor (a-parameter) describes the carrier-induced relationship between gain and index changes in a semiconductor, and plays a key role in many aspects of semiconductor laser operation, particularly those associated with modulation and feedback. In this thesis we examine in detail the relevant contributions to the a-parameter, highlighting the significant influence of many-body effects. We then study of the effects of device structure and composition, discussing ways of minimising a in the context of device design. The device operating regime is found to be critically important, and the quantum well width is also found to play a role. We also explore the qualitative differences between compressive and tensile strained quantum wells, and their respective sensitivity to operating conditions. Semiconductor quantum wells also display very interesting and useful properties in the low carrier density regime, where the medium is absorbing. Particularly interesting are the saturating properties near the excitonic peak, and the effects of carrier (plasma) temperature. The possibility of significant carrier cooling under short pulse excitation near the bandedge has been highlighted, and we explore the impact of such carrier cooling on the saturation characteristics. A spectral regime of enhanced fast saturation is identified, which could provide a mechanism for previously observed mode-locking behaviour.
Author : P. K. Bhattacharya
Publisher : IET
ISBN 13 : 9780852968819
Total Pages : 238 pages
Book Rating : 4.9/5 (688 download)
Download or read book Properties of III-V Quantum Wells and Superlattices written by P. K. Bhattacharya and published by IET. This book was released on 1996 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: A finely-structured, state-of-the-art review on controlled building of atomic-scale mutilayers, where nanometric structures based on III-V semiconductors have attracted particular attention.
Author :
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.3/5 (91 download)
Download or read book Quantum Well and Superlattice Physics written by and published by . This book was released on 1988 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book Novel Electric-Field Effects in Quantum Wells, Superlattices, and Microcavities written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have used an external electric field to control important properties of semiconductor quantum wells. Specifically: (1) We have modified the exciton-exciton interaction. This interaction is determined by many-body effects, which depend on the overlap between the exciton's electron and hole wavefunctions, and is manifested in the energy difference between photoluminescence spectra with different polarizations. In time-resolved photoluminescence (PL) experiments with circular polarization we have observed that spectral difference, which we controlled by an electric field applied to GaAs-GaAlAs coupled quantum wells. Our results confirm the predictions of theory but also point out its limitations to fully explain our observations. (2) We have reversed the valence-band ordering in strained-layer quantum wells, thus 'undoing' the effects of strain. To prove the concept we have used strained InGaAs-InAlAs quantum wells in which the light-hole state is the ground state in the valence band. Photocurrent measurements under various fields have shown a change in the valence-band states that contribute to the fundamental (lowest-energy) transition, from light-hole states to heavy-hole states. This result opens the door to reversing the polarization of light emission in quantum wells, from TM to TE, which could find application in optical modulators. (3) We have shown the presence of low-temperature exciton-photon coupling in microcavities using PL spectroscopy. Because of thermalization until now it has been almost impossible to use PL to study at low temperature (T = 20K or less) the coupling of excitons and photons. We have determined the difference between the lowest-energy PL peak from a quantum well-microcavity system and that of an isolated quantum well, at various temperatures. This difference is constant with T when a field is applied but is T dependent when the field is suppressed. The maximum variation is a direct measure of the exciton-photon coupling.
Author : John P. Loehr
Publisher : Springer Science & Business Media
ISBN 13 : 1461556732
Total Pages : 261 pages
Book Rating : 4.4/5 (615 download)
Download or read book Physics of Strained Quantum Well Lasers written by John P. Loehr and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: When this publisher offered me the opportunity to \\Tite a book, some six years ago, I did not hesitate to say yes. I had just spent the last four years of graduate school struggling to understand the physics of strained quantum well lasers, and it seemed to me the whole experience was much more difficult that it should have been. For although many of the results I needed were easy to locate, the underlying physical premises and intervening steps were not. If only I had a book providing the derivations, I could have absorbed them and gone on my way. Such a book lies before you. It provides a unified and self-contained descrip tion of the essential physics of strained quantum well lasers, starting from first principles whenever feasible. The presentation I have chosen requires only the standard introductory background in quantum mechanics, solid state physics, and electromagnetics expected of entering graduate students in physics or elec trical engineering. A single undergraduate course in each of these subjects should be more than sufficient to follow the text. :'Iore advanced material on quantum mechanics is developed and collected in the first chapter. \Vhen pos sible, I have presented the results in a general setting and have later applied them to specific cases of interest. I find this the most satisfying way to ap proach the subject, and it has the additional benefit of solving many problems once and for all.
Author : Hadis Morkoç
Publisher : John Wiley & Sons
ISBN 13 : 3527628428
Total Pages : 883 pages
Book Rating : 4.5/5 (276 download)
Download or read book Handbook of Nitride Semiconductors and Devices, Electronic and Optical Processes in Nitrides written by Hadis Morkoç and published by John Wiley & Sons. This book was released on 2009-07-30 with total page 883 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three volumes of this handbook treat the fundamentals, technology and nanotechnology of nitride semiconductors with an extraordinary clarity and depth. They present all the necessary basics of semiconductor and device physics and engineering together with an extensive reference section. Volume 2 addresses the electrical and optical properties of nitride materials. It includes semiconductor metal contacts, impurity and carrier concentrations, and carrier transport in semiconductors.
Author : Alexey V. Maslov
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (816 download)
Download or read book Optical Properties of a Quantum Well Driven by a THz Electric Field written by Alexey V. Maslov and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 790 pages
Book Rating : 4.F/5 ( download)
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frederick Wooten
Publisher : Academic Press
ISBN 13 : 1483220761
Total Pages : 273 pages
Book Rating : 4.4/5 (832 download)
Download or read book Optical Properties of Solids written by Frederick Wooten and published by Academic Press. This book was released on 2013-10-22 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Properties of Solids covers the important concepts of intrinsic optical properties and photoelectric emission. The book starts by providing an introduction to the fundamental optical spectra of solids. The text then discusses Maxwell's equations and the dielectric function; absorption and dispersion; and the theory of free-electron metals. The quantum mechanical theory of direct and indirect transitions between bands; the applications of dispersion relations; and the derivation of an expression for the dielectric function in the self-consistent field approximation are also encompassed. The book further tackles current-current correlations; the fluctuation-dissipation theorem; and the effect of surface plasmons on optical properties and photoemission. People involved in the study of the optical properties of solids will find the book invaluable.
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ISBN 13 :
Total Pages : 988 pages
Book Rating : 4.F/5 ( download)
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fumitaro Ishikawa
Publisher : CRC Press
ISBN 13 : 1315340720
Total Pages : 420 pages
Book Rating : 4.3/5 (153 download)
Download or read book Novel Compound Semiconductor Nanowires written by Fumitaro Ishikawa and published by CRC Press. This book was released on 2017-10-17 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: One dimensional electronic materials are expected to be key components owing to their potential applications in nanoscale electronics, optics, energy storage, and biology. Besides, compound semiconductors have been greatly developed as epitaxial growth crystal materials. Molecular beam and metalorganic vapor phase epitaxy approaches are representative techniques achieving 0D–2D quantum well, wire, and dot semiconductor III-V heterostructures with precise structural accuracy with atomic resolution. Based on the background of those epitaxial techniques, high-quality, single-crystalline III-V heterostructures have been achieved. III-V Nanowires have been proposed for the next generation of nanoscale optical and electrical devices such as nanowire light emitting diodes, lasers, photovoltaics, and transistors. Key issues for the realization of those devices involve the superior mobility and optical properties of III-V materials (i.e., nitride-, phosphide-, and arsenide-related heterostructure systems). Further, the developed epitaxial growth technique enables electronic carrier control through the formation of quantum structures and precise doping, which can be introduced into the nanowire system. The growth can extend the functions of the material systems through the introduction of elements with large miscibility gap, or, alternatively, by the formation of hybrid heterostructures between semiconductors and another material systems. This book reviews recent progresses of such novel III-V semiconductor nanowires, covering a wide range of aspects from the epitaxial growth to the device applications. Prospects of such advanced 1D structures for nanoscience and nanotechnology are also discussed.
