| Comparison of Quantum Dots-in-a-Double-Well and Quantum Dots-in-a-Well Focal Plane Arrays in the Long-Wave Infrared |
Jul 2011 |
8 pages |
| Authors:
Jonathan R Andrews; Sergio R Restaino; Scott W Teare; Yagya D Sharma; Woo-Yong Jang; Thomas E Vandervelde; Jay S Brown; Axel Reisinger; Mani Sundaram; Sanjay Krishna; NAVAL RESEARCH LAB KIRTLAND AFB NM REMOTE SENSING DIV
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 | Our previous research has reported on the development of the first generation of quantum dots-in-a-well (DWELL) focal plane arrays (FPAs), which are based on InAs quantum dots (QDs) embedded in an InGaAs well having GaAs barriers which have demonstrated spectral tunability via an externally applied bias voltage. More recently, technologies in DWELL devices have been further advanced by embedding InAs QDs in InGaAs and GaAs double wells with AlGaAs barriers, ... |
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| Carbon Fiber Reinforced Polymer (CFRP) Optics Quality Assessment for Lightweight Deployable Optics |
Sep 2010 |
9 pages |
| Authors:
Jonathan R Andrews; Ty Martinez; Sergio R Restaino; Freddie Santiago; Christopher C Wilcox; Scott W Teare; Robert C Romeo; Robert N Martin; NAVAL RESEARCH LAB KIRTLAND AFB NM REMOTE SENSING DIV
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| The Naval Research Laboratory and Composite Mirror Applications (CMA) have been working together for several years on the development of Carbon Fiber Reinforced Polymer (CFRP) optics and telescopes. We have documented the potential advantages of this technology in several other publications, including structural, thermal and weight advantages over traditional steel and glass optical systems. In this paper we present results of a battery of optical tests done on various CFRP ... |
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| Multi-Conjugate Adaptive Optics Test-bed for Horizontal Propagation |
Sep 2009 |
9 pages |
| Authors:
Sergio R Restaino; Jonathan R Andrews; Ty Martinez; Christopher C Wilcox; Freddie Santiago; Don M Payne; Scott W Teare; NAVAL RESEARCH LAB KIRTLAND AFB NM REMOTE SENSING DIV
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| Our program for the upgrade of the Naval Prototype Optical Interferometer with large telescopes and adaptive optics has produced a test-bed for the in system evaluation and testing of our MEMs adaptive optics components and system performances. We have already reported in recent publications the basic characteristics of the test-bed. In order to improve the capabilities of such laboratory set-up we have started an upgrade that aims at developing a ... |
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| A Modular Control Platform for a Diode Pumped Alkali Laser |
Sep 2008 |
10 pages |
| Authors:
Joshua Shapiro; Scott W Teare; David A Hostutler; AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIRECTORATE
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| Many of the difficulties of creating compact, high power laser systems can be overcome if the heat dissipating properties of chemical lasers can be combined with the efficiency of diode lasers. Recently, the novel idea of using solid state diode lasers to pump gaseous gain media, such as is done in diode pumped alkali lasers (DPALs), has been proposed and early experiments have shown promising results. However, a number of ... |
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| Spectrum Tunable Quantum Dot-In-A-Well Infrared Detector Arrays for Thermal Imaging |
Sep 2008 |
13 pages |
| Authors:
Jonathan R Andrews; Sergio R Restaino; Scott W Teare; Sanjay Krishna; Christopher C Wilcox; Ty Martinez; Luke Lester; NAVAL RESEARCH LAB KIRTLAND AFB NM REMOTE SENSING DIV
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| The Center for High Technology Materials at the University of New Mexico has been investigating quantum dot and quantum well detectors for thermal infrared imaging applications. Recent advances in manufacturing have led to the development of a hybrid quantum dot-in-a-well configuration, allowing many of the benefits of each type of detector in addition to multiple transition energies. These transition energies (and thus wavelengths of detection) are also bias tunable providing ... |
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