High Responsivity Tunable Step Quantum Well Infrared Photodetector
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High Responsivity Tunable Step Quantum Well Infrared Photodetector
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Author : Yeo Hwee Tiong
language : en
Publisher:
Release Date : 2004-12-01
High Responsivity Tunable Step Quantum Well Infrared Photodetector written by Yeo Hwee Tiong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-01 with categories.
In this thesis, the performance of a step quantum well infrared photodetector (QWIP), which was designed to detect a laser spot at 1.05 m and IR radiation between 9.5 m to 10.5 m, was evaluated. In the far infrared (FIR), the maximum responsivity of the test detector at 10 K was measured at 1.02 A/W with a peak wavelength of 10.3 m under a negative bias of 0.83 V. The D* at background limited infrared performance (BLIP) was measured at 8.0x10(9) cm square root Hz/W with 180 degrees field of view. The BLIP temperature was found to be about 55 K. In addition, the FIR detection wavelength found shift with the amount of bias across the device. The amount of shift observed was 0.21 meV/ kvcm-1 which is due to linear Stark effect associated with the step quantum well. The quantum well infrared detectors made of square quantum wells found to have an order of magnitude lower Stark shift originated from second order effects. This suggests that the step well infrared detector can have applications in tunable wavelength infrared detectors.
New Ternary Alloy Systems For Infrared Detectors
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Author : Antoni Rogalski
language : en
Publisher: SPIE Press
Release Date : 1994
New Ternary Alloy Systems For Infrared Detectors written by Antoni Rogalski and has been published by SPIE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Technology & Engineering categories.
Quantum Well Infrared Photodetectors
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Author : Harald Schneider
language : en
Publisher: Springer Series in Optical Sciences
Release Date : 2007
Quantum Well Infrared Photodetectors written by Harald Schneider and has been published by Springer Series in Optical Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
Addressed to both students as a learning text and scientists/engineers as a reference, this book discusses the physics and applications of quantum-well infrared photodetectors (QWIPs). It is assumed that the reader has a basic background in quantum mechanics, solid-state physics, and semiconductor devices. To make this book as widely accessible as possible, the treatment and presentation of the materials is simple and straightforward. The topics for the book were chosen by the following criteria: they must be well-established and understood; and they should have been, or potentially will be, used in practical applications. The monograph discusses most aspects relevant for the field but omits, at the same time, detailed discussions of specialized topics such as the valence-band quantum wells.
Proceedings Of Ieee Sensors
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Author :
language : en
Publisher:
Release Date : 2002
Proceedings Of Ieee Sensors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Detectors categories.
Semiconductor Optoelectronic Device Manufacturing And Applications
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Author : David Chen
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 2001
Semiconductor Optoelectronic Device Manufacturing And Applications written by David Chen and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Technology & Engineering categories.
Proceedings Of The 5th China And International Young Scientist Terahertz Conference Volume 2
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Author : Chao Chang
language : en
Publisher: Springer Nature
Release Date : 2024-07-06
Proceedings Of The 5th China And International Young Scientist Terahertz Conference Volume 2 written by Chao Chang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-06 with Science categories.
The Proceedings of the 5th China and International Young Scientist Terahertz Conference highlight the important research and technological progresses on terahertz signal sources, terahertz detection, terahertz biophysics, terahertz transmission, terahertz regulation, terahertz device and materials, terahertz communication, terahertz radar and imaging, terahertz spectroscopy and biotechnology, and the intersection and application of terahertz-related disciplines.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 1998
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Dissertations, Academic categories.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1994
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Physics categories.
The Physics Of Quantum Well Infrared Photodetectors
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Author : K. K. Choi
language : en
Publisher: World Scientific
Release Date : 1997
The Physics Of Quantum Well Infrared Photodetectors written by K. K. Choi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.
In the past, infrared imaging has been used exclusively for military applications. In fact, it can also be useful in a wide range of scientific and commercial applications. However, its wide spread use was impeded by the scarcity of the imaging systems and its high cost. Recently, there is an emerging infrared technology based on quantum well intersubband transition in III-V compound semiconductors. With the new technology, these impedances can be eliminated and a new era of infrared imaging is in sight. This book is designed to give a systematic description on the underlying physics of the new detectors and other issues related to infrared managing.
Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1993
Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Electrical engineering categories.