Intramodulated photodetector

Author

He, M.-C. ; Liu, G.-Y. ; Huang, Q.-J. ; Chen, B.-R. ; Chen, C.-S. ; Long, L. ; Cai, B.-L.

Author_Institution

Dept. of Phys., Wuhan Univ., China

fYear

1991

Firstpage

275

Lastpage

278

Abstract

Using the controllability of the coupling coefficient in the indirect coupling photodetector, an intramodulated photodetector has been developed. Theoretical and experimental results show that an alternating photocurrent can be exported from this device when it is illuminated by a beam of light with constant intensity. Thus, the intramodulated photodetector can replace a measurement system composed of a mechanical chopper and conventional photodetectors in simplifying measurement conditions and extending its applications to the detection of weak light, environmental monitoring, and medical diagnosis.<>

Keywords

optical modulation; photodetectors; alternating photocurrent; coupling coefficient controllability; detection of weak light; environmental monitoring; indirect coupling photodetector; intramodulated photodetector; medical diagnosis; Chromium; Computer aided instruction; Current supplies; Helium; P-n junctions; Photoconductivity; Photodetectors; Silicon; Stimulated emission; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors and Actuators, 1991. Digest of Technical Papers, TRANSDUCERS '91., 1991 International Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-87942-585-7

Type

conf

DOI

10.1109/SENSOR.1991.148860

Filename

148860