The forward and backward second-harmonic generation from crystallized collagen fibre with tightly focused linearly polarized beams

被引：2
|
作者：
Liu, Jianmei [1 ,2 ]
Jin, Ying [1 ,2 ]
Liu, Hanping [1 ,2 ]
Wang, Feifei [1 ,2 ]
Deng, Xiaoyuan [1 ,2 ,3 ]
机构：
[1] S China Normal Univ, MOE Key Lab Laser Life Sci, Guangzhou 510631, Guangdong, Peoples R China
[2] S China Normal Univ, Lab Photon Chinese Med, Coll Biophoton, Guangzhou 510631, Guangdong, Peoples R China
[3] S China Normal Univ, Res Resources Ctr, Guangzhou Higher Educ Mega Ctr, Guangzhou 510006, Guangdong, Peoples R China
来源：
JOURNAL OF OPTICS | 2012年 / 14卷 / 05期
基金：
中国国家自然科学基金;
关键词：
second harmonic generation; crystallized collagen fibre; polarization; 2ND HARMONIC-GENERATION; IMAGING MICROSCOPY; BIOLOGICAL TISSUES; FIBRILS; EXCITATION; MYOSIN; CELLS; FIELD;
D O I：
10.1088/2040-8978/14/5/055301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a theoretical model to reveal the second-harmonic generation (SHG) from the crystallized collagen fibre, that is, the collagen is highly organized by a bundle of closely packed thin fibrils excited by tightly focused linearly polarized beams, has been established. With this model, we first theoretically demonstrate the phenomenon of the coexisting of forward (F) and backward (B) second-harmonic emissions in a specific SHG medium. The ratio of forward-to-backward (F/B) SHG is dependent on the constituted SHG medium by a particular collagen fibril diameter d(1) as well as the structural order (m, l) of collagen fibre.
引用
收藏
页数：9
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