Guided‐wave measurement of the 1.06‐&mgr;m two‐photon absorption coefficient in GaAs epitaxial layers
作者:
A. Azema,
J. Botineau,
F. Gires,
A. Sai¨ssy,
期刊:
Journal of Applied Physics
(AIP Available online 1978)
卷期:
Volume 49,
issue 1
页码: 24-28
ISSN:0021-8979
年代: 1978
DOI:10.1063/1.324374
出版商: AIP
数据来源: AIP
摘要:
The optical perturbation of an infrared wave guided in a GaAs epitaxial layer allows us to measure the two‐photon absorption coefficient &bgr; for the wavelength &lgr;=1.06 &mgr;m. The use of optical properties of free carriers induced by the two‐photon effect and of guided optical wave techniques strongly enhances method accuracy. The result (&bgr;=0.06 cm MW−1) is in good agreement with the most recent bulk measurements and the theoretical values.
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