Ultrafast all-optical switching in one-dimensional photonic crystal with two defects

被引：69

作者：

Ma, GH

Shen, J

Zhang, ZJ

Hua, ZY

Tang, SH

机构：

[1] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

[2] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

来源：

OPTICS EXPRESS | 2006年 / 14卷 / 02期

关键词：

D O I：

10.1364/OPEX.14.000858

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

One-dimensional (1D) photonic crystals (PC) containing two-layer CdS defects are proposed and fabricated by using electron beam evaporation. Ultrafast nonlinear optical responses were characterized with the ultrafast pump-probe method in both time and spectral domains. Two-photon absorption coefficient enhancement and pump-beam-induced defect mode shift were reported. Both effects are attributed to the light localization in the defect layer of the multilayer structures. Our results demonstrated that defective photonic crystals are good candidates for fabrication of ultrafast all-optical switching devices. (c) 2006 Optical Society of America.

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页码：858 / 865

页数：8

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