Ultraviolet second-harmonic generation and sum-frequency mixing in two-dimensional nonlinear optical polymer photonic crystals

被引：0
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作者：
Inoue, Shin-Ichiro [1 ,2 ]
Aoyagi, Yoshinobu [1 ,2 ]
机构：
[1] Nanoscience Research Program, RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
[2] Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2006年 / 45卷 / 8 A期
关键词：
Second-harmonic generation (SHG) and sum-frequency mixing (SFM) are investigated in a two-dimensional photonic crystal (PhC) waveguide formed using a nonlinear optical (NLO) polymer with metallic cladding. The improved waveguide structure of the NLO polymer PhC enables the realization of ultraviolet and blue SHG and SFM radiation at wavelengths ranging from 368 to 400 nm. Large SHG enhancement at 368 nm was observed; originating from resonance between the external pump laser field and a photonic band mode. The SHG enhancement results agree well with the experimental photonic band structure obtained by angle-dependent optical reflectivity and the theoretical structure generated by three-dimensional finite-difference time-domain calculations. © 2006 The Japan Society of Applied Physics;
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页码：6103 / 6107
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