Nonlinear Optical Studies of the Optical and Electronic Properties of Semiconductor Heterostructures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nonlinear Optical Studies of the Optical and Electronic Properties of Semiconductor Heterostructures write by Duncan G. Steel. This book was released on 1990. Nonlinear Optical Studies of the Optical and Electronic Properties of Semiconductor Heterostructures available in PDF, EPUB and Kindle. Experimental work emphasized demonstrating the use of high resolution frequency domain nonlinear laser spectroscopy for the study of materials, particularly semiconductor heterostructures. The work has demonstrated that cw four-wave mixing spectroscopy provides new information regarding the origin of the nonlinear optical response in semiconductor materials as well as new information about structure and relaxation. A summary of the current progress shows: (1) First experimental observation of an interference effect in the nonlinear optical response in GaAs quantum well structures corresponding to a slow component in the nonlinear optical response. The interference effect is evidence that the exciton resonance frequency is shifted in the presence of the electron hole plasma produced by the ionized exciton. (2) Demonstration of frequency domain nonlinear optical spectroscopy methods for the direct measurement of the ambipolar diffusion coefficient and the electron-hole recombination rate in GaAs quantum well structures. (3) Measurement of the response time in strained quantum well structures where the heavy and light hole exciton overlap in energy. and (4) Use of precision nonlinear optical spectroscopy methods for the study of phonon induced spectral diffusion of the heavy hole exciton at low temperature in GaAs quantum well structures. Keywords: Semiconductor junctions; Nonlinear optical analysis. (cp).
Electronic States and Optical Transitions in Semiconductor Heterostructures
Electronic States and Optical Transitions in Semiconductor Heterostructures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Electronic States and Optical Transitions in Semiconductor Heterostructures write by Fedor T. Vasko. This book was released on 2012-12-06. Electronic States and Optical Transitions in Semiconductor Heterostructures available in PDF, EPUB and Kindle. The theoretical basis and the relevant experimental knowledge underlying our present understanding of the electrical and optical properties of semiconductor heterostructures. Although such structures have been known since the 1940s, it was only in the 1980s that they moved to the forefront of research. The resulting structures have remarkable properties not shared by bulk materials. The text begins with a description of the electronic properties of various types of heterostructures, including discussions of complex band-structure effects, localised states, tunnelling phenomena, and excitonic states. The focus of the remainder of the book is on optical properties, including intraband absorption, luminescence and recombination, Raman scattering, subband optical transitions, nonlinear effects, and ultrafast optical phenomena. The concluding chapter presents an overview of some of the applications that make use of the physics discussed. Appendices provide background information on band structure theory, kinetic theory, electromagnetic modes, and Coulomb effects.
Electronic and Optical Properties of Semiconductors
Electronic and Optical Properties of Semiconductors - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Electronic and Optical Properties of Semiconductors write by Lok C. Lew Yan Voon. This book was released on 1997-08. Electronic and Optical Properties of Semiconductors available in PDF, EPUB and Kindle. This study is a theoretical investigation of the electronic and optical properties of intrinsic semiconductors using the orthogonal empirical tight binding model. An analysis of the bulk properties of semiconductors with the zincblende, diamond and rocksalt structures has been carried out. We have extended the work of others to higher order in the interaction integrals and derived new parameter sets for certain semiconductors which better fit the experimental data over the Brillouin zone. The Hamiltonian of the heterostructures is built up layer by layer from the parameters of the bulk constituents. The second part of this work examines a number of applications of the theory. We present a new microscopic derivation of the intervalley deformation potentials within the tight binding representation and computes a number of conduction-band deformation potentials of bulk semiconductors. We have also studied the electronic states in heterostructures and have shown theoretically the possibility of having barrier localization of above-barrier states in a multivalley heterostructure using a multiband calculation. Another result is the proposal for a new "type-II" lasing mechanism in short-period GaAs/AlAs superlattices. As for our work on the optical properties, a new formalism, based on the generalized Feynman-Hellmann theorem, for computing interband optical matrix elements has been obtained and has been used to compute the linear and second-order nonlinear optical properties of a number of bulk semiconductors and semiconductor heterostructures. In agreement with the one-band elective mass calculations of other groups, our more elaborate calculations show that the intersubband oscillator strengths of quantum wells can be greatly enhanced over the bulk interband values.
Optical Nonlinearities and Instabilities in Semiconductors
Optical Nonlinearities and Instabilities in Semiconductors - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Optical Nonlinearities and Instabilities in Semiconductors write by Hartmut Haug. This book was released on 2012-12-02. Optical Nonlinearities and Instabilities in Semiconductors available in PDF, EPUB and Kindle. Optical Nonlinearities and Instabilities in Semiconductors deals with various aspects of nonlinear optical phenomena and related optical instabilities in semiconductors. Measurements and explanations of the optical nonlinearities of various semiconductor materials and structures are presented, along with optical bistability and diode laser thresholds; self-oscillations; and chaos. This text consists of 17 chapters and begins with an introductory chapter to the historical background of investigations of the resonance-enhanced nonlinear optical properties of semiconductors and their manifestations in optical instabilities. The discussion then turns to the experimentally observed optical nonlinearities in homogeneous semiconductors and the microscopic theory of the optical band edge nonlinearities. This book considers the studies of the spectral region close to the band gap meant to exploit the resonance enhancement of the nonlinear optical behavior. The remaining chapters focus on nonlinear optical properties of semiconductor quantum wells; dense nonequilibrium excitations in gallium arsenide; optical decay and spatial relaxation; and optical bistability in semiconductor laser amplifiers. A chapter that describes instabilities in semiconductor lasers concludes the book. This book is intended for research students and active research workers who are interested in the basic physics or in the device applications of optical nonlinearities and instabilities in semiconductors.
Nonlinear Optical Studies Semiconductor Heterostructures
Nonlinear Optical Studies Semiconductor Heterostructures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Nonlinear Optical Studies Semiconductor Heterostructures write by . This book was released on 1999. Nonlinear Optical Studies Semiconductor Heterostructures available in PDF, EPUB and Kindle. The research program focused on the development and application of advanced coherent optical interactions in semiconductor and semiconductor heterostructures. The experimental results were extensive and resulted in considerable advancement of the field. Included in the data was the first observation of the coherent nonlinear optical response of a single quantum dot exciton. Based on this result, we proceeded to demonstrate the first coherent optical control of a single quantum dot exciton and the basic features of quantum wave function engineering in these systems. Our measurements also included the first demonstration of two-electron entanglement in these systems. With support with an ARO-DURIP program, we have succeeded in building the first low temperature near field optical scanning microscope based on probing the coherent nonlinear optical response. The data show evidence that we have been able to map the wave function of a localized exciton in a quantum dot.
