A Semiclassical Transport Model for Thin Quantum Barriers PDF Download

Author: Kyle A. Novak
Publisher:
ISBN:
Category :
Languages : en
Pages : 90

View

Book Description
We present a one-dimensional time-dependent semiclassical transport model for mixed state scattering with thin quantum barriers. The idea is to solve a stationary Schrodinger equation in the thin quantum barrier to obtain the scattering coefficients, and then use them to supply the interface condition that connects the two classical domains. We then build in the interface condition to the numerical flux, in the spirit of the Hamiltonian-preserving scheme introduced by Jin and Wen for a classical barrier. The overall cost is roughly the same as solving a classical barrier. We construct a numerical method based on this semiclassical approach and validate the model using various numerical examples.

Author: Eitan Tadmor
Publisher: American Mathematical Soc.
ISBN: 0821847295
Category : Mathematics
Languages : en
Pages : 361

View

Book Description
The International Conference on Hyperbolic Problems: Theory, Numerics and Applications, 'HYP2008', was held at the University of Maryland from June 9-13, 2008. This book, the first in a two-part volume, contains nineteen papers based on plenary and invited talks presented at the conference.

Author: Federico Capasso
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110710706
Category : Technology & Engineering
Languages : en
Pages : 1866

View

Book Description
This book provides a cutting-edge research overview on the latest developments in the field of Optics and Photonics. All chapters are authored by the pioneers in their field and will cover the developments in Quantum Photonics, Optical properties of 2D Materials, Optical Sensors, Organic Opto-electronics, Nanophotonics, Metamaterials, Plasmonics, Quantum Cascade lasers, LEDs, Biophotonics and biomedical photonics and spectroscopy.

Author: C. Julian Chen
Publisher: Oxford University Press, USA
ISBN: 0195071506
Category : Science
Languages : en
Pages : 469

View

Book Description
A graduate-level introduction to scanning tunnelling microscopy, which explains how the method's ability to map microscopic surfaces non-destructively has found major applications in physics, surface science, materials science, biology, chemistry and engineering.

Author: Dragica Vasileska
Publisher: CRC Press
ISBN: 1420064843
Category : Technology & Engineering
Languages : en
Pages : 782

View

Book Description
Starting with the simplest semiclassical approaches and ending with the description of complex fully quantum-mechanical methods for quantum transport analysis of state-of-the-art devices, Computational Electronics: Semiclassical and Quantum Device Modeling and Simulation provides a comprehensive overview of the essential techniques and methods for effectively analyzing transport in semiconductor devices. With the transistor reaching its limits and new device designs and paradigms of operation being explored, this timely resource delivers the simulation methods needed to properly model state-of-the-art nanoscale devices. The first part examines semiclassical transport methods, including drift-diffusion, hydrodynamic, and Monte Carlo methods for solving the Boltzmann transport equation. Details regarding numerical implementation and sample codes are provided as templates for sophisticated simulation software. The second part introduces the density gradient method, quantum hydrodynamics, and the concept of effective potentials used to account for quantum-mechanical space quantization effects in particle-based simulators. Highlighting the need for quantum transport approaches, it describes various quantum effects that appear in current and future devices being mass-produced or fabricated as a proof of concept. In this context, it introduces the concept of effective potential used to approximately include quantum-mechanical space-quantization effects within the semiclassical particle-based device simulation scheme. Addressing the practical aspects of computational electronics, this authoritative resource concludes by addressing some of the open questions related to quantum transport not covered in most books. Complete with self-study problems and numerous examples throughout, this book supplies readers with the practical understanding required to create their own simulators.

Author: Norman G. Einspruch
Publisher: Elsevier
ISBN: 1483295176
Category : Technology & Engineering
Languages : en
Pages : 465

View

Book Description
Heterostructure and quantum-mechanical devices promise significant improvement in the performance of electronic and optoelectronic integrated circuits (ICs). Though these devices are the subject of a vigorous research effort, the current literature is often either highly technical or narrowly focused. This book presents heterostructure and quantum devices to the nonspecialist, especially electrical engineers working with high-performance semiconductor devices. It focuses on a broad base of technical applications using semiconductor physics theory to develop the next generation of electrical engineering devices. The text covers existing technologies and future possibilities within a common framework of high-performance devices, which will have a more immediate impact on advanced semiconductor physics-particularly quantum effects-and will thus form the basis for longer-term technology development.

Author: Vladimir Polushkin
Publisher: John Wiley & Sons
ISBN: 1119834686
Category : Technology & Engineering
Languages : en
Pages : 452

View

Book Description
NUCLEAR ELECTRONICS WITH QUANTUM CRYOGENIC DETECTORS An ideal, comprehensive reference on quantum cryogenic detector instrumentation for the semiconductor and nuclear electronics industries Quantum nuclear electronics is an important scientific and technological field that overviews the development of the most advanced analytical instrumentation. This instrumentation covers a broad range of applications such as astrophysics, fundamental nuclear research facilities, chemical nano-spectroscopy laboratories, remote sensing, security systems, forensic investigations, and more. In the years since the first edition of this popular resource, the discipline has developed from demonstrating the unprecedented energy resolving power of individual devices to building large frame cameras with hundreds of thousands of pixel arrays capable of measuring and processing massive information flow. Building upon its first edition, the second edition of Nuclear Electronics with Quantum Cryogenic Detectors reflects the latest advances by focusing on novel microwave kinetic inductance detection devices (MKIDs), the microwave superconducting quantum interferometers (MSQUIDs) extending by orders of magnitude the scalability of cryogenic detectors implementing newly developed multiplexing techniques and decoding algorithms. More, it reflects on the interaction of quantum cryogenic detectors—which in turn can be paired with semiconductor large frame cameras to provide a broad picture of a sky or chemical sample—and quantum devices, making this second edition of Nuclear Electronics a one-stop reference for the combined technologies. The book also provides an overview of latest developments in front-end electronics, signal processing channels, and cryogenics—all components of quantum spectroscopic systems—and provides guidance on the design and applications of the future quantum cryogenic ultra-high-resolution spectrometers. Nuclear Electronics with Quantum Cryogenic Detectors readers will also find: Fully revised material from the first edition relating to cryogenic requirements Brand new chapters on semiconductor radiation sensors, cooling and magnetic shielding for cryogenic detector systems; front-end readout electronic circuits for quantum cryogenic detectors; energy resolution of quantum cryogenic spectrometers; and applications of spectrometers based on cryogenic detectors A number of brand-new chapters dedicated to applications using MSQUID multiplexing technique, an area that will dominate the cryogenic detector field in the next decades Nuclear Electronics with Quantum Cryogenic Detectors provides a comprehensive overview of the entire discipline for researchers, industrial engineers, and graduate students involved in the development of high-precision nuclear measurements, nuclear analytical instrumentation, and advanced superconductor primary sensors. It is also a helpful resource for electrical and electronic engineers and physicists in the nuclear industry, as well as specialist researchers or professionals working in cryogenics applications like biomagnetism, quantum computing, gravitation measurement, and more.

Author: Sanka Gateva
Publisher: BoD – Books on Demand
ISBN: 953510358X
Category : Technology & Engineering
Languages : en
Pages : 474

View

Book Description
In this book some recent advances in development of photodetectors and photodetection systems for specific applications are included. In the first section of the book nine different types of photodetectors and their characteristics are presented. Next, some theoretical aspects and simulations are discussed. The last eight chapters are devoted to the development of photodetection systems for imaging, particle size analysis, transfers of time, measurement of vibrations, magnetic field, polarization of light, and particle energy. The book is addressed to students, engineers, and researchers working in the field of photonics and advanced technologies.

Author: Dragica Vasileska
Publisher: Springer Science & Business Media
ISBN: 1441988408
Category : Technology & Engineering
Languages : en
Pages : 450

View

Book Description
This book surveys the advanced simulation methods needed for proper modeling of state-of-the-art nanoscale devices. It systematically describes theoretical approaches and the numerical solutions that are used in explaining the operation of both power devices as well as nano-scale devices. It clearly explains for what types of devices a particular method is suitable, which is the most critical point that a researcher faces and has to decide upon when modeling semiconductor devices.

Author: Sulaiman Wadi Harun
Publisher: John Wiley & Sons
ISBN: 1119469988
Category : Technology & Engineering
Languages : en
Pages : 605

View

Book Description
The eighth volume in a series of handbooks on graphene research and applications The Handbook of Graphene, Volume 8: Technology and Innovations discusses the role of graphene-based applications in technological advancements. Topics include graphene materials used in circuit board repairs; RFID antenna and sensor fabrication; and wearable healthcare electronics. Chapters present detailed information on: modeling methods used in graphene research; applications of graphene-on-silicon photonic integrated circuits; the development of graphene for engineering applications; and other graphene subjects of interest to scientists, chemists and physicists.