Controllable color display induced by excitation-intensity-dependent competition between second and third harmonic generation in ZnO nanorods

被引：14
作者：
Dai, Jun [1 ,2 ]
Yuan, Mao-Hui [1 ]
Zeng, Jian-Hua [1 ]
Dai, Qiao-Feng [1 ]
Lan, Sheng [1 ]
Xiao, Chai [3 ]
Tie, Shao-Long [3 ]
机构：
[1] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Lab Nanophoton Funct Mat & Devices, Guangzhou 510006, Guangdong, Peoples R China
[2] Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Guangdong, Peoples R China
[3] S China Normal Univ, Sch Chem & Environm, Guangzhou 510006, Guangdong, Peoples R China
来源：
APPLIED OPTICS | 2014年 / 53卷 / 02期
基金：
中国国家自然科学基金;
关键词：
3RD-ORDER OPTICAL NONLINEARITIES; FEMTOSECOND LASER-ABLATION; 2ND-HARMONIC GENERATION; 3RD-HARMONIC GENERATION; ROOM-TEMPERATURE; THIN-FILMS; EMISSION; SINGLE; NANOPARTICLES; LUMINESCENCE;
D O I：
10.1364/AO.53.000189
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigated the second and third harmonic generation (SHG and THG) in ZnO nanorods (NRs) by using a femtosecond laser (optical parametric amplifier with tunable wavelengths) with a long excitation wavelength of 1350 nm and a low repetition rate of 1 kHz. The damage threshold for ZnO NRs in this case was sufficiently large, enabling us to observe the competition between SHG and THG. The transition from red to blue emission and the mixing of red and blue light with different ratios were successfully demonstrated by simply varying excitation intensity, implying the potential applications of ZnO NRs in all-optical display. (C) 2014 Optical Society of America
引用
收藏
页码：189 / 194
页数：6
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