Degenerate Two-Beam Phase Conjugation in One-Dimensional ZnS-YF3 Photonic Crystal With Central Defect Mode

被引:1
|
作者
Wong, Tsz Chun [1 ]
Wong, Kam Sing [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
关键词
Degenerate four-wave mixing (DFWM); multi-player photonic crystal (PhC); optical phase conjugation; 2ND-HARMONIC GENERATION; BAND-GAP; ENHANCEMENT;
D O I
10.1109/LPT.2010.2045750
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter presents the experimental demonstration of degenerate two-beam phase conjugation (2BPC) by using a one-dimensional ZnS-YF photonic crystal (PhC) with central defect mode. The effective third-order nonlinearity of the PhC sample is (2.3 +/- 0.1) x 10(-9) which is almost four orders of magnitude larger in comparison with bulk ZnS (chi((3))(ZnS) = 3.1 x 10(-13) esu). This large nonlinearity enhancement is attributed to the high density of mode and the electric field localization around the central defect layer near the defect mode wavelength. The realization of 2BPC utilizing defect mode in a simple PhC structure will greatly reduce the complexity to achieve compact and low-power nonlinear optical devices.
引用
收藏
页码:781 / 783
页数:3
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