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Single UV Photons Detected By Tiny Avalanche Photodiode
Bio-terrorism / Terrorism In a significant breakthrough, researchers at Northwestern University's Center for Quantum Devices (CQD) have demonstrated visible-blind avalanche photodiodes (APDs) capable of detecting single photons in the ultraviolet region (360-200 nm).Previously, photomultiplier tubes (PMTs) were the only available technology in the short wavelength UV portion of the spectrum capable of single photon detection sensitivity.
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