2014年2月
Optical second harmonic generation from V-shaped chromium nanohole arrays
JAPANESE JOURNAL OF APPLIED PHYSICS
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- 巻
- 53
- 号
- 2
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7567/JJAP.53.02BC11
- 出版者・発行元
- IOP PUBLISHING LTD
We observed rotational anisotropy of optical second harmonic generation (SHG) from an array of V-shaped chromium nanoholes fabricated by electron beam lithography. Phenomenological analysis indicated that the effective nonlinear susceptibility element X-313((2)) had a characteristic contribution to the observed anisotropic SHG intensity patterns. Here, coordinate 1 is in the direction of the tip of V shapes in the substrate plane, and 3 indicates the direction perpendicular to the sample surface. The SHG intensity for the S-polarized output light was very weak, probably owing to the cancellation effect of the image dipoles generated at the metal-air boundary. The possible origin of the observed nonlinearity is discussed in terms of the susceptibility elements obtained. (C) 2014 The Japan Society of Applied Physics
- リンク情報
- ID情報
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- DOI : 10.7567/JJAP.53.02BC11
- ISSN : 0021-4922
- eISSN : 1347-4065
- Web of Science ID : WOS:000332815100021