| Experimental and Theoretical Study of the Temperature Performance of Type-II Quantum Well Lasers |
31 MAY 2007 |
15 pages |
| Authors:
Gregory Belenky; Mikhail V. Kisin; Sergey Suchalkin; STATE UNIV OF NEW YORK RESEARCH FOUNDATION AT STONY BROOK OFFICE OF SPONSORED PROGRAMS
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 | The method of analyzing the temperature performance of type-II Interband Cascade (IC) GaSb-based semiconductor lasers has been developed. The method includes comparing the temperature-concentration dependence at the laser threshold with steady-state carrier heating characteristics. The number of cascades in prototype type-II IC lasers has been optimized with respect to the highest achievable operating temperature. An ultra-sensitive single-pass measurement technique was developed to study optical absorption in thin-layered laser heterostructures. The ... |
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| High-Speed Stark Wavelength Tuning of MidIR Interband Cascade Lasers |
15-Mar-2007 |
4 pages |
| Authors:
Gregory Belenky; Sergey Suchalkin; Richard L Tober; Mikhail V Kisin; Serge Luryi; Fred J Towner; John D Bruno; STATE UNIV OF NEW YORK RESEARCH FOUNDATION AT STONY BROOK OFFICE OF SPONSORED PROGRAMS
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| Stark modulation of the wavelength of a midinfrared tunable interband cascade laser was studied. Wavelength modulation at frequencies exceeding 1 GHz was demonstrated. Estimates of capacitances inherent to the laser's structure suggested that improved packaging techniques could lead to modulation frequencies approaching 6 GHz. |
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| A Collaborative Study of Sleep, Performance and Health Relationships |
DEC 2006 |
20 pages |
| Authors:
Gregory Belenky; Hans Van Dongen; WASHINGTON STATE UNIV SPOKANE
|
| The Sleep and Performance Research Center (SPRC) at Washington State University will conduct laboratory and field studies of sleep loss and performance in normal humans. These studies will provide the scientific basis for the effective management of sleep to sustain performance in the operational environment, including all 24x7 operations, extended work hours, and shiftwork. They will improve effectiveness, productivity, safety, health and well-being in military and civilian operations, reducing the ... |
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| A Collaborative Study of Sleep, Performance and Health Relationships |
DEC 2005 |
20 pages |
| Authors:
Gregory Belenky; Hans Van Dongen; WASHINGTON STATE UNIV PULLMAN
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| The Sleep and Performance Research Center (SPRC) at Washington State University will conduct laboratory and field studies of sleep loss and performance in normal humans. These studies will provide the scientific basis for the effective management of sleep to sustain performance in the operational environment, including all 24x7 operations, extended work hours, and shiftwork. They will improve effectiveness, productivity, safety, health and well-being in military and civilian operations, reducing the ... |
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| Studies of Heavily Strained and Strain-Compensated Type-I GaSb Based Heterostructures for Development of High Efficiency Coherent Sources Operating in the Range of 2.3 - 3.5 microns |
28 SEP 2005 |
11 pages |
| Authors:
Gregory Belenky; L. E. Vorobiev; STATE UNIV OF NEW YORK AT STONY BROOK
|
| A new class of high power continuous wave room-temperature operated GaSb-based mid-infrared lasers and laser arrays was developed. World record devices were designed and fabricated. (1) 1W CW and 5W pulsed single laser operation was achieved in 2.3-2.5 micron range. (2) 500mW continuous wave (2.5W in pulse) and 160mW continuous wave (2W in pulse) was reported for 2.7 and 2.8 micron devices, respectively. (3) Linear laser arrays operating at 2.35 ... |
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| Cognitive Readiness in Network-Centric Operations |
01-Jan-2005 |
13 pages |
| Authors:
Gregory Belenky; Nancy J Wesensten; Thomas J Balkin; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DIV OF PSYCHIATRY AND NEUROSCIENCE
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| Network-centric warfare is the basis of doctrine and operations for the U.S. Army, Navy, and Air Force. Fundamental to network-centric warfare is the availability of accurate, detailed, real-time information at all levels of command and control. Network-centric operations and the associated self-synchronization put a premium on the performance of individual soldiers and small teams at all levels of command and control. A critical component of such performance is the ability ... |
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