Modification of two-photon excited fluorescence from quantum dots on SiN photonic crystals

被引：3

作者：

Xu, Xingsheng ^{[1
,2
]}

Yamada, Toshiki ^{[2
]}

Yokoyama, Shiyoshi ^{[3
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China

[2] Natl Inst Informat & Commun Technol, Kobe Adv Res Ctr, Nishi Ku, Kobe, Hyogo 6512492, Japan

[3] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

OPTICS LETTERS | 2010年 / 35卷 / 03期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

STIMULATED-EMISSION; LIGHT EXTRACTION; WAVE-GUIDES; ENHANCEMENT;

D O I：

10.1364/OL.35.000309

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate two-photon excited fluorescence from CdSe quantum dots with a center-emitting wavelength of 655 nm on SiN photonic crystals. We find that two-photon excited fluorescence is enhanced by more than 1 order of magnitude in the vertical direction when a photonic crystal is used compared to the fluorescence spectra in the absence of photonic crystals. The spectrum of two-photon excited fluorescence from quantum dots on SiN photonic crystal is observed to shift to blue compared to that from quantum dots on SiN without photonic crystals. (C) 2010 Optical Society of America

引用

页码：309 / 311

页数：3

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