Natural silk protein as a new broadband nonlinear optical material

被引：15
|
作者：
Lee, Byungjic [1 ]
Kwon, Hyunsoo [1 ]
Kim, Sunghwan [1 ,2 ]
Rotermund, Fabian [1 ,2 ]
机构：
[1] Ajou Univ, Dept Energy Syst Res, Suwon 16499, South Korea
[2] Ajou Univ, Dept Phys, Suwon 16499, South Korea
来源：
OPTICAL MATERIALS EXPRESS | 2016年 / 6卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
MULTIPHOTON ABSORPTION; FILMS; FIBROIN; SUSCEPTIBILITY; BEAM; DNA;
D O I：
10.1364/OME.6.000993
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Third-order nonlinear optical phenomena lie at the heart of all-optical signal processing, where laser pulses are used to switch, modulate, or gate another laser pulse. Here we report that the solidified silk film possesses extremely large third-order susceptibilities (similar to 10(-9) esu) in a wide near-infrared spectral region. The nonlinearity of silk protein can be substantially enhanced by inducing stronger molecular interactions from van der Waals forces and hydrogen bonding. The biocompatibility and capability of nanofabrication techniques will enable us to pave new ways for nonlinear bioimaging and biosensing applications. (C) 2016 Optical Society of America
引用
收藏
页码：993 / 1002
页数：10
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