Self Assembled Quantum Dots

Author : Zhiming M Wang
Publisher : Springer Science & Business Media
Page : 468 pages
File Size : 55,8 Mb
Release : 2007-11-29
Category : Technology & Engineering
ISBN : 9780387741918

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Self-Assembled Quantum Dots by Zhiming M Wang Pdf

This multidisciplinary book provides up-to-date coverage of carrier and spin dynamics and energy transfer and structural interaction among nanostructures. Coverage also includes current device applications such as quantum dot lasers and detectors, as well as future applications to quantum information processing. The book will serve as a reference for anyone working with or planning to work with quantum dots.

Author : Robson Ferreira,Gerald Bastard
Publisher : Morgan & Claypool Publishers
Page : 89 pages
File Size : 46,5 Mb
Release : 2016-02-23
Category : Technology & Engineering
ISBN : 9781681741536

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Capture and Relaxation in Self-Assembled Semiconductor Quantum Dots by Robson Ferreira,Gerald Bastard Pdf

This is an overview of different models and mechanisms developed to describe the capture and relaxation of carriers in quantum-dot systems. Despite their undisputed importance, the mechanisms leading to population and energy exchanges between a quantum dot and its environment are not yet fully understood. The authors develop a first-order approach to such effects, using elementary quantum mechanics and an introduction to the physics of semiconductors. The book results from a series of lectures given by the authors at the Master’s level.

Author : Robson Ferreira,Gerald Bastard
Publisher : Morgan & Claypool Publishers
Page : 112 pages
File Size : 49,9 Mb
Release : 2016-02-23
Category : Technology & Engineering
ISBN : 9781681740898

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Capture and Relaxation in Self-Assembled Semiconductor Quantum Dots by Robson Ferreira,Gerald Bastard Pdf

This is an overview of different models and mechanisms developed to describe the capture and relaxation of carriers in quantum-dot systems. Despite their undisputed importance, the mechanisms leading to population and energy exchanges between a quantum dot and its environment are not yet fully understood. The authors develop a first-order approach to such effects, using elementary quantum mechanics and an introduction to the physics of semiconductors. The book results from a series of lectures given by the authors at the Master’s level.

Author : Anonim
Publisher : Academic Press
Page : 368 pages
File Size : 55,9 Mb
Release : 1999-03-29
Category : Technology & Engineering
ISBN : 0080864589

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Self-Assembled InGaAs/GaAs Quantum Dots by Anonim Pdf

This volume is concerned with the crystal growth, optical properties, and optical device application of the self-formed quantum dot, which is one of the major current subjects in the semiconductor research field. The atom-like density of states in quantum dots is expected to drastically improve semiconductor laser performance, and to develop new optical devices. However, since the first theoretical prediction for its great possibilities was presented in 1982, due to the difficulty of their fabrication process. Recently, the advent of self-organized quantum dots has made it possible to apply the results in important optical devices, and further progress is expected in the near future. The authors, working for Fujitsu Laboratories, are leading this quantum-dot research field. In this volume, they describe the state of the art in the entire field, with particular emphasis on practical applications.

Author : Peter Michler
Publisher : Springer Science & Business Media
Page : 370 pages
File Size : 48,9 Mb
Release : 2003-12-09
Category : Science
ISBN : 3540140220

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Single Quantum Dots by Peter Michler Pdf

Special focus is given to the optical and electronic properties of single quantum dots due to their potential applications in devices operating with single electrons and/or single photons. This includes quantum dots in electric and magnetic fields, cavity-quantum electrodynamics, nonclassical light generation, and coherent optical control of excitons.

Author : R Ferreira
Publisher : Myprint
Page : 114 pages
File Size : 42,8 Mb
Release : 2015-12-18
Category : Electronic
ISBN : 1681747510

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Capture and Relaxation in Self-Assembled Semiconductor Quantum Dots by R Ferreira Pdf

Author : Mohamed Henini
Publisher : Elsevier
Page : 864 pages
File Size : 54,8 Mb
Release : 2011-07-28
Category : Technology & Engineering
ISBN : 0080560474

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Handbook of Self Assembled Semiconductor Nanostructures for Novel Devices in Photonics and Electronics by Mohamed Henini Pdf

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

Author : Yasuaki Masumoto,T. Takagahara
Publisher : Springer Science & Business Media
Page : 520 pages
File Size : 46,6 Mb
Release : 2002-05-28
Category : Science
ISBN : 3540428054

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Semiconductor Quantum Dots by Yasuaki Masumoto,T. Takagahara Pdf

Growth of Self Organized Quantum Dots / J.-S. Lee / - Excitonic Structures and Optical Properties of Quantum Dots / Toshihide Takagahara / - Electron-Phonon Interactions in Semiconductor Quantum Dots / Toshihide Takagahara / - Micro-Imaging and Single Dot Spectroscopy of Self Assembled Quantum Dots / Mitsuru Sugisaki / - Persistent Spectral Hole Burning in Semiconductor Quantum Dots / Yasuaki Masumoto / - Dynamics of Carrier Relaxation in Self Assembled Quantum Dots / Ivan V. Ignatiev, Igor E. Kozin / - Resonant Two-Photon Spectroscopy of Quantum Dots / Alexander Baranov / - Homogeneous Width of Confined Excitons in Quantum Dots - Experimental / Yasuaki Masumoto / - Theory of Exciton Dephasing in Semiconductor Quantum Dots / Toshihide Takagahara / - Excitonic Optical Nonlinearity and Weakly Correlated Exciton-Pair States / Selvakumar V. Nair, Toshihide Takagahara / - Coulomb Effects in the Optical Spectra of Highly Excited Semiconductor Quantum Dots / Selvakumar V. Nair / - Device ...

Author : Zhiming M. Wang
Publisher : Springer
Page : 468 pages
File Size : 49,7 Mb
Release : 2008-11-01
Category : Technology & Engineering
ISBN : 0387520627

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Self-Assembled Quantum Dots by Zhiming M. Wang Pdf

This multidisciplinary book provides up-to-date coverage of carrier and spin dynamics and energy transfer and structural interaction among nanostructures. Coverage also includes current device applications such as quantum dot lasers and detectors, as well as future applications to quantum information processing. The book will serve as a reference for anyone working with or planning to work with quantum dots.

Author : Jean-Pierre Leburton
Publisher : CRC Press
Page : 991 pages
File Size : 53,9 Mb
Release : 2021-12-23
Category : Technology & Engineering
ISBN : 9781000348194

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Physical Models for Quantum Dots by Jean-Pierre Leburton Pdf

Since the early 1990s, quantum dots have become an integral part of research in solid state physics for their fundamental properties that mimic the behavior of atoms and molecules on a larger scale. They also have a broad range of applications in engineering and medicines for their ability to tune their electronic properties to achieve specific functions. This book is a compilation of articles that span 20 years of research on comprehensive physical models developed by their authors to understand the detailed properties of these quantum objects and to tailor them for specific applications. Far from being exhaustive, this book focuses on topics of interest for solid state physicists, materials scientists, engineers, and general readers, such as quantum dots and nanocrystals for single-electron charging with applications in memory devices, quantum dots for electron-spin manipulation with applications in quantum information processing, and finally self-assembled quantum dots for applications in nanophotonics.

Author : Gerasimos Konstantatos,Edward H. Sargent
Publisher : Cambridge University Press
Page : 329 pages
File Size : 50,9 Mb
Release : 2013-11-07
Category : Science
ISBN : 9780521198264

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Colloidal Quantum Dot Optoelectronics and Photovoltaics by Gerasimos Konstantatos,Edward H. Sargent Pdf

Captures the most up-to-date research in the field, written in an accessible style by the world's leading experts.

Author : Peter A. Ling
Publisher : Nova Publishers
Page : 278 pages
File Size : 47,6 Mb
Release : 2005
Category : Science
ISBN : 1594544069

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Quantum Dots by Peter A. Ling Pdf

A quantum dot is a particle of matter so small that the addition or removal of an electron changes its properties in some useful way. All atoms are quantum dots, but multi-molecular combinations can have this characteristic. In biochemistry, quantum dots are called redox groups. In nanotechnology, they are called quantum bits or qubits. Quantum dots typically have dimensions measured in nanometers, where one nanometer is 10-9 meter or a millionth of a millimetre. The fields of biology, chemistry, computer science, and electronics are all of interest to researchers in nanotechnology. Other applications of quantum dots include nanomachines, neural networks, and high-density memory or storage media. Research is being carried out on nano-crystals, self-assembled dots, and gated structures. This book presents leading-edge research from around the world.

Author : Malte Huck
Publisher : diplom.de
Page : 133 pages
File Size : 55,7 Mb
Release : 2010-03-25
Category : Science
ISBN : 9783836644396

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Optical and Electrical Properties of Single Self-Assembled Quantum Dots in Lateral Electric Fields by Malte Huck Pdf

Inhaltsangabe:Abstract: Chapter 1: In this thesis we investigate the optical properties of self-assembled quantum dots exposed to a lateral electric field. As a result of the electric field the wave functions of electrons and holes inside the quantum dot are manipulated, which makes it possible to tune their energy levels and control the optical properties of the system. The possibility of tuning the emission energy of different few particle states using this method makes this system very promising for the use of a source of polarization entangled photons as discussed in the following sections. In Section 1.1 the concept of entangled states is introduced together with a brief historical overview. The possibility of using the exciton biexciton cascade of a self-assembled quantum dot for the generation of entangled photon pairs is presented in Section 1.2. Chapter 2: In this chapter we introduce the concept of quantum dots and demonstrate their optical emission properties. In Section 2.1 the quantum dot is introduced as a three-dimensional charge carrier trap. Several types of quantum dots are presented in an overview. In Section 2.2 we discuss the physical effects that occur on the way from bulk semiconductor material to the three-dimensional charge carrier confinement in the case of quantum dots. The growth of self-assembled quantum dot samples is the topic of Section 2.3, where the technique of molecular beam epitaxy is introduced (Section 2.3.1). This technique is used to grow the semiconductor quantum dots via heteroepitaxy in the Stranski-Krastanov growth mode (Section 2.3.2). Quantum dots are commonly referred to as artificial atoms due to their atomlike emission features. The origin for this expression is explained in Section 2.4 on the basis of the energetic structure of self-assembled quantum dots. The optical properties of quantum dots are discussed in Section 2.5, beginning with an introduction to the experimental setup that has been used to investigate the quantum dots during this thesis (Section 2.5.1). Different optical excitation modes are presented in Section 2.5.2 and in Section 2.5.3 we discuss, how to achieve a low enough quantum dot density on the analyzed samples. Section 2.5.4 deals with the photoluminescence of different exciton states and in Section 2.5.5 we present how these lines can be identified via power dependent measurements. Finally, the concept of initial charges in self-assembled quantum dots is presented in [...]

Author : Anonim
Publisher : Academic Press
Page : 368 pages
File Size : 51,8 Mb
Release : 1999-04-05
Category : Technology & Engineering
ISBN : 0127521690

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Self-Assembled InGaAs/GaAs Quantum Dots by Anonim Pdf

This volume is concerned with the crystal growth, optical properties, and optical device application of the self-formed quantum dot, which is one of the major current subjects in the semiconductor research field. The atom-like density of states in quantum dots is expected to drastically improve semiconductor laser performance, and to develop new optical devices. However, since the first theoretical prediction for its great possibilities was presented in 1982, due to the difficulty of their fabrication process. Recently, the advent of self-organized quantum dots has made it possible to apply the results in important optical devices, and further progress is expected in the near future. The authors, working for Fujitsu Laboratories, are leading this quantum-dot research field. In this volume, they describe the state of the art in the entire field, with particular emphasis on practical applications.

Author : Selman Tunc Yilmaz
Publisher : Sudwestdeutscher Verlag Fur Hochschulschriften AG
Page : 80 pages
File Size : 45,8 Mb
Release : 2011-12
Category : Electronic
ISBN : 3838130200

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Exploring Single Spin Physics in Self-Assembled Quantum Dots by Selman Tunc Yilmaz Pdf

In semiconductors, free charge carriers such as electrons and holes can be confined in all three dimensions in nanometer sized regions called quantum dots (QDs). QDs are convenient tools to gain detailed insight into the single photon-single emitter interaction and they serve as optical probes to study semiconductor physics at the nanoscale. The spin state (spin-up or spin-down) of a trapped QD electron or QD hole is a promising candidate as a computational unit for quantum information processing (QIP), the application of quantum mechanics to information processing. QIP promises immense computational power and secure communication. This work focusses on the optical spectroscopy of single InGaAs QDs and it addresses major challenges of using QD spins for QIP.