DocumentCode :
2682227
Title :
Observation of coherent optical phonons in GaAs/AlxGa1-xAs single heterojunctions
Author :
Chang, Y.-M. ; Chang, N.-A. ; Chang, Y.-H.
Author_Institution :
Dept. of Phys., Nat. Taiwan Univ., Taipei, Taiwan
Volume :
2
fYear :
2003
fDate :
15-19 Dec. 2003
Abstract :
Time-resolved second-harmonic generation was used to generate and detect coherent LO phonons in semiconductor heterojunctions. Three coherent LOGaAs, LOGaAs-like, and LOAlAs-like phonons were launched by transiently screening the depletion field in the GaAs/AlxGa1-x interfacial region.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; high-speed optical techniques; optical harmonic generation; phonons; semiconductor heterojunctions; time resolved spectroscopy; GaAs-AlxGa1-xAs; GaAs/AlxGa1-x interfacial region; GaAs/AlxGa1-xAs single heterojunctions; LOAlAs-like phonons; LOGaAs-like phonons; LOGaAs phonons; coherent LO phonons; coherent optical phonons; coherent phonon spectroscopy; depletion field; semiconductor heterojunctions; time-resolved second-harmonic generation; Carrier confinement; Curve fitting; Gallium arsenide; Heterojunctions; Optical pumping; Phonons; Plasma confinement; Plasma measurements; Raman scattering; Spectroscopy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
Type :
conf
DOI :
10.1109/CLEOPR.2003.1277093
Filename :
1277093
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2682227
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