標題: Bipolar photogenerated terahertz radiation in biased photoconductive switches
作者: Lin, PI
Luo, CW
Liu, HS
Wu, KH
Juang, JY
Uen, TM
Gou, YS
電子物理學系
Department of Electrophysics
關鍵字: terahertz radiation;free-space electro-optic sampling;photoconductive switches
公開日期: 1-五月-2003
摘要: The characteristics of optically induced bipolar THz radiation in biased photoconductive switches were investigated systematically by using free-space electro-optic sampling technique. The emitted radiation shows nearly symmetrical waveform with broadband frequency spectrum spanning over 0.1-3 THz. It was observed that the bipolar nature and the emitted frequency spectrum distribution remained unchanged on varying the optical excitation fluence, strength of biased field and the emitter gap spacing. The dynamics of emitted THz transient are in agreement with the optically induced ultrafast charge transport process driven by the biased field. (C) 2003 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0921-4526(02)02442-0
http://hdl.handle.net/11536/27906
ISSN: 0921-4526
DOI: 10.1016/S0921-4526(02)02442-0
期刊: PHYSICA B-CONDENSED MATTER
Volume: 329
Issue: 
起始頁: 1651
結束頁: 1652
顯示於類別:會議論文


文件中的檔案:

  1. 000183802700567.pdf