Photoconductive probing of acoustoelectric domains with application to optical image scanning
作者:
G. K. Celler,
Ralph Bray,
期刊:
Applied Physics Letters
(AIP Available online 1975)
卷期:
Volume 27,
issue 2
页码: 53-55
ISSN:0003-6951
年代: 1975
DOI:10.1063/1.88363
出版商: AIP
数据来源: AIP
摘要:
A simple new method is described for probing acoustoelectric domains inn‐GaAs through their strong photoconductive response to a focused light beam. This permits a scan of the spatial distribution and propagation of the amplified acoustic flux in the sample. As a further application of the photoconductive response, a narrow propagating domain can be used to reveal an optical image projected onto the sample. The techniques are illustrated here primarily for extrinsic photoexcitation with Nd:YAG laser light.
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