Effect of Optical Breakdown on Second Harmonic Generation from Si(111)7×7 with Nd:YAG Laser
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概要
- 論文の詳細を見る
Effect of optical breakdown on second harmonic generation (SHG) from Si(111)7×7 was investigated. After the irradiation of a laser beam with a threshold energy for the optical breakdown, the intensity of second harmonics (SH) polarized along the [011] axis measured as a function of pump-polarization showed deviation from 90° periodicity which is expected from the surface C_<3ν> symmetry, although low energy electron diffraction (LEED) still exhibited the 7×7 structure. The irradiation of a more intense laser beam led to structural disorder, resulting incomplete disappearance of SH periodicity, and no pattern of LEED was exhibited.
- 社団法人応用物理学会の論文
- 1994-07-15
著者
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NAKAMURA Ken
Electrotechnical Laboratory
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Ichimura Shingo
Electrotechnical Laboratory
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Shimizu Hazime
Electrotechnical Laboratory
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