Effect of optical breakdown on second harmonic generation from Si(111)7 × 7 with Nd:YAG laser

Ken Nakamura, Shingo Ichimura, Hazime Shimizu

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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 [01(formula presented)] axis measured as a function of pump-polarization showed deviation from 90° periodicity which is expected from the surface C3v 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 in complete disappearance of SH periodicity, and no pattern of LEED was exhibited.

本文言語English
ページ(範囲)L1035-L1037
ジャーナルJapanese journal of applied physics
33
7
DOI
出版ステータスPublished - 1994 7月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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