CdS nanobelt (NB) Metal-Semiconductor Field Effect Transistor (MESFET)-based photodetectors
showing a photoresponsivity of 2x[10.
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.
The low-power (calibrated levels from pW to 2W) 818 series detectors operate from 200 to 1800 nm and feature matching patented, removable OD3 attenuators for each photodetector
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
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 telescope is the Arctic Muon and Neutrino Detector Array II (AMANDA II)--a collection of hundreds of sensitive photodetectors
sunk deep into the South Pole ice (SN: 3/27/99, p.
Camarillo-based maker of photodetectors
and other optical electronics
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.
In a first phase the state of the art of high power high-speed photodetectors
shall be reviewed.
Many manufacturers currently use indium phosphide for making LEDs, lasers, photodetectors
, and other components of fiberoptic systems.