Digital phase conjugation of second harmonic radiation emitted by nanoparticles in turbid media

被引：153
|
作者：
Hsieh, Chia-Lung [1 ,2 ]
Pu, Ye [1 ]
Grange, Rachel [1 ]
Psaltis, Demetri [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Sch Engn, CH-1015 Lausanne, Switzerland
[2] CALTECH, Dept Elect Engn, Pasadena, CA 91125 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 12期
关键词：
HOLOGRAPHIC MICROSCOPY; GENERATION; NANOCRYSTALS; SUPPRESSION; PROBES;
D O I：
10.1364/OE.18.012283
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate focusing coherent light on a nanoparticle through turbid media based on digital optical phase conjugation of second harmonic generation (SHG) field from the nanoparticle. A SHG active nanoparticle inside a turbid medium was excited at the fundamental frequency and emitted SHG field as a point source. The SHG emission was scattered by the turbid medium, and the scattered field was recorded by off-axis digital holography. A phase-conjugated beam was then generated by using a phase-only spatial light modulator and sent back through the turbid medium, which formed a nearly ideal focus on the nanoparticle. (C) 2010 Optical Society of America
引用
收藏
页码：12283 / 12290
页数：8
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