The forward and backward second-harmonic generation from crystallized collagen fibre with tightly focused linearly polarized beams
The forward and backward second-harmonic generation from crystallized collagen fibre with tightly focused linearly polarized beams
复制标题
紧聚焦线偏振光束结晶胶原纤维产生前向和后向二次谐波
DOI：
10.1088/2040-8978/14/5/055301
复制
发表时间：
2012-05-01
影响因子：
2.1
通讯作者：
Deng, Xiaoyuan
中科院分区：
文献类型：
--
作者：
Liu, Jianmei;Jin, Ying;Deng, Xiaoyuan
本文建立了一个理论模型来揭示结晶胶原纤维的二次谐波产生（SHG），即胶原纤维是由一束紧密排列的细纤维在紧聚焦线偏振光束的激发下高度组织化的。利用这个模型，我们首先从理论上证明了在特定的二次谐波介质中，前向（F）和后向（B）二次谐波辐射共存的现象。前向与后向（F/B）SHG的比率取决于由特定胶原纤维直径d（1）以及胶原纤维的结构顺序（m，l）构成的SHG介质。
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.