Low‐Coherence Optical Probe for Non‐Contact Detection of Photothermal and Photoacoustic Phenomena in Biomaterials
Low‐Coherence Optical Probe for Non‐Contact Detection of Photothermal and Photoacoustic Phenomena in Biomaterials
复制标题
用于生物材料中光热和光声现象非接触式检测的低相干光学探针
DOI：
10.1063/1.1570224
复制
发表时间：
2003
影响因子：
5.6
通讯作者：
T. Milner
中科院分区：
文献类型：
--
作者：
S. Telenkov;D. Dave;T. Milner
Laser‐induced mechanical deformations in materials can be detected without contact using various optical methods. We have developed a low‐coherence optical probe to monitor thermal elastic deformations and acoustic transients in materials exposed to laser excitation. Our approach utilizes principles from low‐coherence interferometry with phase‐sensitive detection of the coherence function of backscattered light from two spatially separated sites in a test material. High spatial resolution and sensitivity of the optical probe may be used to identify subsurface light‐absorbing structures in turbid media and determine optical properties non‐invasively. The low‐coherence optical sensor may prove useful for non‐contact studies of tissue‐like materials in biomedical engineering.
