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Influence of doping profiles on coherent acoustic phonon detection and generation in semiconductors

✍ Scribed by Hudert, F.; Bartels, A.; Dekorsy, T.; Köhler, K.

Book ID
120279397
Publisher
American Institute of Physics
Year
2008
Tongue
English
Weight
787 KB
Volume
104
Category
Article
ISSN
0021-8979

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Experiments have shown that ultrafast optical excitation of semiconductors can produce oscillating changes in the optical properties of the material. The frequency of the oscillations in transmission or reflection usually matches one of the phonon modes, typically the q = 0 optical mode. These oscil