Proceedings of the Second European Workshop on Low Temperature Electronics
J. Phys. IV France 06 (1996) C3-213-C3-218
A 4.2 K Very High-Gain/Modulation Factor Silicon Detector/ModulatorE.A. Gutierrez-D.1, S.V. Koshevaya2, P. Kolev1 and J. Deen1
1 Contact author : On leave from INAOE, and currently at Simon Fraser University, School of Engineering Science, Burnaby, B.C., V5A 1S6, Canada
2 National Institute for Astrophysics, Optics and Electronics (INAOE), P.O. Box 51 & 216, Z.P. 72000, Puebla, Mexico
An n-well ion-implanted resistor is shown to work as a very-linear high-gain photodetector at 4.2 K. We take advantage of freeze-out and light-assisted carrier ionisation effects to create a photodetector with a current-gain factor G from 1x104 to 1.6x106. Experimental results show that at the current gain of 1.6X106, excellent linearity in optical response is obtained when the resistor is illuminated with a red-light source.
© EDP Sciences 1996