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Carrier dynamics and coherent acoustic phonons in nitride heterostructures

✍ Scribed by Sanders, G. D.; Stanton, C. J.

Book ID
126853669
Publisher
The American Physical Society
Year
2006
Tongue
English
Weight
842 KB
Volume
74
Category
Article
ISSN
1098-0121

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## Abstract An interferometric technique employing femtosecond pump–probe reflectivity measurements has been used to study the direct generation, propagation, and detection of coherent longitudinal acoustic (LA) phonon pulses in bulk GaN and AlGaN thin films at frequencies in the 100 to 200 GHz ran