| Literature DB >> 19547564 |
Shi-Wei Chu, Shih-Peng Tai, Ming-Che Chan, Chi-Kuang Sun, I-Ching Hsiao, Chi-Hung Lin, Yung-Chih Chen, Bai-Ling Lin.
Abstract
Simultaneous backward and forward second harmonic generations from isolated type-I collagen matrix are observed. Optical interference behaviors of these nonlinear optical signals are studied with accurately determined fibril thickness by an atomic force microscope. The nonlinear emission directions are strongly dependent on the coherent interaction within and between collagen fibrils. A linear relationship is obtained to estimate collagen fibril thickness with nanometer precision noninvasively by evaluating the forward/backward second harmonic generation ratio.Year: 2007 PMID: 19547564 DOI: 10.1364/oe.15.012005
Source DB: PubMed Journal: Opt Express ISSN: 1094-4087 Impact factor: 3.894