Share Email Print
cover

Proceedings Paper

Lifetime of photo-excited carriers in GaAs studied with optical-pump terahertz-probe method
Author(s): Lei Hou; Lei Yang; Xianjin Shao; Zhiquan Wang; Mengmeng Zhao; Wei Shi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The ultrafast photoconductive characteristics of GaAs were investigated by the optical-pump terahertz-probe (OPTP) method at room temperature. In our experiment, a significant decrease of the terahertz transmittance has been observed when the time delay between the optical pump pulse and the terahertz probe pulse was adjusted. When the optical excitation occurred on the surface of GaAs, the free carriers increase. Results regressed the experimental curve and obtained the carrier lifetime is 681ps.

Paper Details

Date Published: 5 November 2015
PDF: 4 pages
Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 979538 (5 November 2015); doi: 10.1117/12.2210956
Show Author Affiliations
Lei Hou, Xi'an Univ. of Technology (China)
Lei Yang, Xi'an Univ. of Technology (China)
Xianjin Shao, Xi'an Univ. of Technology (China)
Zhiquan Wang, Xi'an Univ. of Technology (China)
Mengmeng Zhao, Xi'an Univ. of Technology (China)
Wei Shi, Xi'an Univ. of Technology (China)


Published in SPIE Proceedings Vol. 9795:
Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015
Shenggang Liu; Songlin Zhuang; Michael I. Petelin; Libin Xiang, Editor(s)

© SPIE. Terms of Use
Back to Top