Supercontinuum generation in aqueous core/shell structured nanoparticles

被引：0

作者：

Hu, Siyi ^{[1
,2
]}

Liu, Liwei ^{[1
,2
]}

Wang, Yue ^{[1
,2
]}

Ren, Yu ^{[1
,2
]}

Tao, Haiyan ^{[1
]}

Feng, Yueshu ^{[1
,2
]}

Huang, Chen ^{[1
,2
]}

机构：

[1] ChangChun Univ Sci & Technol, Sch Sci, Changchun 130022, Jilin, Peoples R China

[2] Int Joint Res Ctr Nanophoton & Biophoton, Sch Sci, Changchun 130022, Jilin, Peoples R China

来源：

JOURNAL OF NANOPHOTONICS | 2015年 / 9卷

基金：

中国国家自然科学基金;

关键词：

supercontinuum; quantum dots; femtosecond laser; FEMTOSECOND LASER-PULSE; GOLD NANOPARTICLES; FILAMENTS;

D O I：

10.1117/1.JNP.9.093065

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the observation of a supercontinuum (SC) in aqueous CdTe/ZnSe quantum dots (QDs) pumped by 800-nm femtosecond laser pulses based on simulations and experiments. For an average nanocrystal of 5.5 nm in size and a weight concentration of 5 mg/mL, the SC generated with a low-input energy range exhibits high optical to optical conversion efficiency. The measured SC spectrum exhibits spectral broadening that is significantly influenced by the nonlinear coefficient of the QDs. This nanoparticles-based SC effect may have special applications for optical coherence imaging and ultrashort pulse compression. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：8

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