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Infrared photodetectors News
Nanomaterial combinations enhance IR photodetection
TEMPE, Ariz. – Improved infrared photodetector technology that uses ultrathin layers of materials should have an impact on critical applications ranging from national defense to medical diagnostics. Arizona State University researchers have discovered how infrared photodetection can be achieved more effectively using certain materials arranged in specific patterns in atomic-scale structures. The scientists formed crystals on multiple nanometer-thick layers of materials, then combined the layered structures ...
Nanomaterial Combinations Enhance IR Photodetection
TEMPE, Ariz., Feb. 16, 2012 — Improved infrared photodetector technology that uses multiple ultrathin layers of materials should have an impact on critical applications ranging from national defense to medical diagnostics.
TPV Researcher Wins NSF Early-Career Award
MEDFORD/SOMERVILLE, Mass., April 15, 2011 — Tom Vandervelde, assistant professor of electrical and computer engineering at Tufts University, has been given an early-career award from the National Science Foundation for promising research in thermophotovoltaics (TPVs). Vandervelde, the...
A Leap for Lasers and Photodetectors
TEMPE, Ariz., Aug. 10, 2010 — A team of Arizona State University researchers will get support from the US Department of Defense to aid development of the next generations of lasers and infrared photodetectors. The technology is widely employed in sensing and imaging for an...
Nanoscale gold boosts infrared detection
TROY, N.Y. – For the past decade, state-of-the-art infrared photodetectors have been based on MCT, or mercury cadmium telluride, technology, which offers strong signal sensing but is associated with various drawbacks, such as its suboptimal signal-to-noise ratio...
Drift in Cryogenically Cooled Photodetectors: Causes and Cures
Apr 1, 2006 — Infrared photodetectors benefit greatly from cooling to cryogenic temperatures. For this reason, manufacturers mount the majority of these instruments in evacuated Dewars that use cryogenic coolants such as liquid nitrogen or helium (Figure 1)....
Nonlinear Behavior in Quantum-Well IR Photodetector Is Studied
Aug 1, 2004 — Although the potential of quantum-well infrared photodetectors for thermal imaging has been known for some time, significantly less research has been focused on the nonlinear behavior of these devices and on the potential applications of that...
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April 2024
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