DocumentCode
2748317
Title
Chirped-pulse control of carrier dynamics in low-temperature grown GaAs
Author
Lee, Chao-Kuei ; Lin, Sung-Hui ; Yang, C.S. ; Pan, Ci-Ling
Author_Institution
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
fYear
2011
fDate
9-13 Oct. 2011
Firstpage
320
Lastpage
321
Abstract
In this work, using chirped pulse excitation pump-probe technique, we present the results of a study of carrier dynamics modulation in low-temperature-grown GaAs. Increasing carrier relaxation times as varying the excitation chirped conditions from negative to positive is demonstrated and explained by spectral dependence of carrier dynamics in Shockley-Read Hall model. We also indicate that chirped pulse has the feasibility of controlling carrier dynamics in ultrafast optical devices.
Keywords
III-V semiconductors; carrier mobility; carrier relaxation time; chirp modulation; gallium arsenide; high-speed optical techniques; GaAs; Shockley-Read-Hall model; carrier dynamics modulation; carrier relaxation time; chirped pulse control; chirped pulse excitation pump probe technique; low temperature grown crystal; ultrafast optical device; Charge carrier lifetime; Charge carrier processes; Chirp; Cooling; Photonics; Reflectivity; Transient analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Photonics Conference (PHO), 2011 IEEE
Conference_Location
Arlington, VA
Print_ISBN
978-1-4244-8940-4
Type
conf
DOI
10.1109/PHO.2011.6110556
Filename
6110556
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