光学
材料科学
干扰(通信)
光学相干层析成像
干涉显微镜
镜面反射
显微镜
物理
电气工程
频道(广播)
工程类
作者
Zhenhe Ma,Ning Ding,Zhen Li,Keliang Zhu,Ang Li,Zhan-Hong Lin,Yi Wang,Yuqian Zhao,Yao Yu,Jingmin Luan,Xin Zhu,Jian Liu
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-05-31
卷期号:47 (11): 2895-2895
被引量:2
摘要
We introduce a method to extract the photoacoustic (PA) signal from a contrast reduction of the interference spectrum acquired by spectral domain optical coherence tomography (SDOCT). This all-optical detection is achieved in a noncontact manner directly on the water surface covered on the sample by using its specular reflection. During SDOCT exposure, the phase of the interference spectrum keeps shaking according to the water surface vibration induced by PA excitation. This results in an interference contrast reduction which is quantified by a fast Fourier transform (FFT) for PA imaging. A tungsten filament, asparagus fern leaf, and mouse auricle are imaged to demonstrate the method.
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