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Author : Valentina Cesari
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (111 download)
Download or read book Ultrafast Carrier Dynamics in Ρ Doped InFaAs/GaAs Quantum Dots written by Valentina Cesari and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Valentina Cesari
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (87 download)
Download or read book Ultrafast carrier dynamics in p doped InGaAs/GaAs quantum dots written by Valentina Cesari and published by . This book was released on 2009 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kyoungsik Kim
Publisher :
ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ultrafast Carrier Dynamics of InGaAs Quantum Dots in the High Carrier Density Regime written by Kyoungsik Kim and published by . This book was released on 2004 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zong-Kwei J. Wu
Publisher :
ISBN 13 : 9780542924514
Total Pages : 109 pages
Book Rating : 4.9/5 (245 download)
Download or read book Ultrafast Electronic Dynamics in Unipolar N-doped InGaAs/GaAs Self-Assembled Quantum Dots written by Zong-Kwei J. Wu and published by . This book was released on 2006 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: We presented a comprehensive picture of electron dynamics in the unipolar quantum dot structure. Although the phonon bottleneck is circumvented with high doped electron density, relaxation processes in unipolar quantum dots have been measured with time scales longer than that of bipolar systems. The results explain the operation principles of the quantum dot infrared photodetector on a microscopic level and provide basic understanding for future applications and designs.
Author : Harald Willi Giessen
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (312 download)
Download or read book Ultrafast Carrier and Gain Dynamics in Strongly Confined Semiconductor Quantum Dots written by Harald Willi Giessen and published by . This book was released on 1995 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hai Wang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (12 download)
Download or read book Ultrafast Carrier Dynamics in Quantum Dot Sensitized Systems written by Hai Wang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tobias Nowozin
Publisher : Springer Science & Business Media
ISBN 13 : 3319019708
Total Pages : 163 pages
Book Rating : 4.3/5 (19 download)
Download or read book Self-Organized Quantum Dots for Memories written by Tobias Nowozin and published by Springer Science & Business Media. This book was released on 2013-10-01 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today’s semiconductor memory market is divided between two types of memory: DRAM and Flash. Each has its own advantages and disadvantages. While DRAM is fast but volatile, Flash is non-volatile but slow. A memory system based on self-organized quantum dots (QDs) as storage node could combine the advantages of modern DRAM and Flash, thus merging the latter’s non-volatility with very fast write times. This thesis investigates the electronic properties of and carrier dynamics in self-organized quantum dots by means of time-resolved capacitance spectroscopy and time-resolved current measurements. The first aim is to study the localization energy of various QD systems in order to assess the potential of increasing the storage time in QDs to non-volatility. Surprisingly, it is found that the major impact of carrier capture cross-sections of QDs is to influence, and at times counterbalance, carrier storage in addition to the localization energy. The second aim is to study the coupling between a layer of self-organized QDs and a two-dimensional hole gas (2DHG), which is relevant for the read-out process in memory systems. The investigation yields the discovery of the many-particle ground states in the QD ensemble. In addition to its technological relevance, the thesis also offers new insights into the fascinating field of nanostructure physics.
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (684 download)
Download or read book Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Quantum Dots written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-dimensional semiconductors have attracted great interest due to the potential for tailoring their linear and nonlinear optical properties over a wide-range. Semiconductor nanocrystals (NC's) represent a class of quasi-zero-dimensional objects or quantum dots. Due to quantum cordhement and a large surface-to-volume ratio, the linear and nonlinear optical properties, and the carrier dynamics in NC's are significantly different horn those in bulk materials. napping at surface states can lead to a fast depopulation of quantized states, accompanied by charge separation and generation of local fields which significantly modifies the nonlinear optical response in NC's. 3D carrier confinement also has a drastic effect on the energy relaxation dynamics. In strongly confined NC's, the energy-level spacing can greatly exceed typical phonon energies. This has been expected to significantly inhibit phonon-related mechanisms for energy losses, an effect referred to as a phonon bottleneck. It has been suggested recently that the phonon bottleneck in 3D-confined systems can be removed due to enhanced role of Auger-type interactions. In this paper we report femtosecond (fs) studies of ultrafast optical nonlinearities, and energy relaxation and trap ping dynamics in three types of quantum-dot systems: semiconductor NC/glass composites made by high temperature precipitation, ion-implanted NC's, and colloidal NC'S. Comparison of ultrafast data for different samples allows us to separate effects being intrinsic to quantum dots from those related to lattice imperfections and interface properties.
Author : Willem de Jong
Publisher :
ISBN 13 : 9789090123110
Total Pages : 108 pages
Book Rating : 4.1/5 (231 download)
Download or read book Nonlinear Optical Study of Ultrafast Carrier Dynamics in GaAs written by Willem de Jong and published by . This book was released on 1999 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrafast Density-and-temperature-dependent Carrier Dynamics in a Quantum Dots-in-a-well Heterostructure written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Academic Press
ISBN 13 : 0080864589
Total Pages : 385 pages
Book Rating : 4.0/5 (88 download)
Download or read book Self-Assembled InGaAs/GaAs Quantum Dots written by and published by Academic Press. This book was released on 1999-03-29 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Jörg Siegert
Publisher :
ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (185 download)
Download or read book Carrier Dynamics in Semiconductor Quantum Dots written by Jörg Siegert and published by . This book was released on 2006 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jaswinder Singh Sandhu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (894 download)
Download or read book Spin Dynamics of Carriers in Doped GaAs Quantum-well Systems written by Jaswinder Singh Sandhu and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Siddhārtha Ghosha
Publisher :
ISBN 13 :
Total Pages : 350 pages
Book Rating : 4.3/5 (91 download)
Download or read book Growth of In(Ga)As/GaAs Self-organized Quantum Dots and Their Application to High-speed Lasers and Spin-polarized Light Sources written by Siddhārtha Ghosha and published by . This book was released on 2003 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Brendan Malins
Publisher :
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (23 download)
Download or read book Ultrafast Dynamics in InAs Quantum Dot and GaInNAs Quantum Well Semiconductor Heterostructures written by David Brendan Malins and published by . This book was released on 2007 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hagen Wald
Publisher :
ISBN 13 : 9783932633850
Total Pages : 100 pages
Book Rating : 4.6/5 (338 download)
Download or read book Ultrafast Carrier Dynamics Investigated by a Novel Pump and Probe Terahertz Technique written by Hagen Wald and published by . This book was released on 2004 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Angela Gamouras
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Ultrafast Quantum Control of Exciton Dynamics in Semiconductor Quantum Dots written by Angela Gamouras and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
