Search Menu
Photonics Media Photonics Buyers' Guide Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Microdischarge Studied for Detectors

Facebook Twitter LinkedIn Email Comments
Scientists at the University of Illinois in Urbana and at Ewing Technology Associates in Bellevue, Wash., are investigating the photosensitivity of silicon microdischarge devices. Experiments at the university, reported in the Dec. 9 issue of Applied Physics Letters, characterized the detection of UV, visible and near-IR radiation by the devices, finding responses as high as 950 ±250 A/W at 625 nm for a 50 x 50-µm device.

In microdischarge devices, the semiconductor serves as a photocathode and the plasma acts as an electron multiplier via an avalanche process. Gary Eden of the University of Illinois said that it should be possible to develop a family of microdischarge photodetectors that operate over a wide wavelength by using a semiconductor with a bandgap different from that of the photocathode. Arrays of the devices may be used in spectroscopy and biochemic applications.

Photonics Spectra
Jan 2003
That property of a material indicating that it will react when exposed to light energy.
As We Go To PressBreaking Newsnear-IR radiationphotosensitivityPresstime BulletinSensors & Detectorssilicon microdischarge devicesUVvisible

back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2020 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.