MEASUREMENT OF FREE-SPACE TERAHERTZ PULSES VIA LONG-LIFETIME PHOTOCONDUCTORS

Authors
SUN FG WAGONER GA ZHANG XC
Citation
Fg. Sun et al., MEASUREMENT OF FREE-SPACE TERAHERTZ PULSES VIA LONG-LIFETIME PHOTOCONDUCTORS, Applied physics letters, 67(12), 1995, pp. 1656-1658
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
67
Issue
12
Year of publication
1995
Pages
1656 - 1658
Database
ISI
SICI code
0003-6951(1995)67:12<1656:MOFTPV>2.0.ZU;2-R
Abstract
Antennas based on commercially available GaAs as a photoconductor with a subnanosecond photocarrier lifetime have been used to detect subpic osecond free-space electromagnetic radiation (THz pulses). At low opti cal gating intensities (less than or equal to 1 mW/100 mu m(2)), GaAs based antennas exhibit a higher responsivity and signal-to-noise ratio than typical antennas based on radiation-damaged silicon-on-sapphire. (C) 1995 American Institute of Physics.