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A device in a spectrophotometer that responds to photons in a manner usually proportional to the number of photons striking its light-sensitive surface.
References in periodicals archive ?
Chen suspects that the plasmon oscillations (variations in the electron density) of individual nanoparticles -- which enhance the local optical field -- may be one reason for the improved performance of the photodetectors.
The optical characteristics of the photodetectors were determined in accordance with Fig.
The need for less cooling reduces the amount of power needed to operate the photodetectors, which will make the devices more reliable and the systems more cost effective.
Tests have shown that the behaviour of the LEDs and photodetectors remains unchanged even after the circuit is repeatedly stretched by 75 percent.
The tiny size also means that multiplication noise is suppressed by 50% - 70% with respect to conventional avalanche photodetectors.
uAt Photonics AG, the provider of leading-edge optoelectronic components, today announced the world s fastest balanced photodetector offering a 3dB bandwidth of 70 GHz.
Concentrating on the latest developments for efficiently cooling detectors that operate in the middle- and long-wavelength IR spectrum, practitioner Piotrowski and Rogalski (applied physics, Military U, of Technology, Warsaw) describe innovations in the cooling of many types of IR photodetectors with emphasis on HgCdTe alloy based detectors.
The DAPD10C Series is one of a next generation of solid-state photomultipliers being developed by ATI that are expected to replace vacuum tube-based photodetectors in critical medical imaging, biomedical, industrial, and research applications.
Many manufacturers currently use indium phosphide for making LEDs, lasers, photodetectors, and other components of fiberoptic systems.
Barber of the University of California, Los Angeles used several photodetectors surrounding a flask of water to determine the uniformity of light emission from a sound-driven oscillating bubble.