Optimization of two-photon absorption enhancement in one-dimensional photonic crystals with defect states

被引：22

作者：

Ma, GH ^{[1
]}

Shen, J

Rajiv, K

Tang, SH

Zhang, ZJ

Hua, ZY

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 03期

关键词：

D O I：

10.1007/s00340-005-1730-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

One-dimensional photonic crystals with a defect layer of CdS were fabricated. The observed enhancement of two-photon absorption (TPA) in the CdS layer can be attributed to the intensified optical field confined within the defect layer of the photonic crystal. The results show that the enhancement of TPA coefficient depends basically on the number of periods of the photonic crystal and the defect mode position in the photonic band gap. The observation agrees qualitatively with the expectations of a computation by matrix transfer formulation.

引用

页码：359 / 363

页数：5

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