光学
计算机科学
解调
材料科学
信号(编程语言)
傅里叶变换
物理
图像质量
探测器
频域
迭代重建
信号处理
时域
显微镜
生物医学中的光声成像
图像分辨率
作者
George J. Tserevelakis,Kostas G. Mavrakis,Nikitas Kakakios,Giannis Zacharakis
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-10-01
卷期号:46 (19): 4718-4721
摘要
We present a full image reconstruction methodology in frequency-domain photoacoustic (PA) microscopy using a low-cost I/Q demodulator for the recording of the amplitude and phase of the signals. By modulating the intensity of a continuous-wave diode laser at 10 MHz, we have been able to provide accurate optical absorption images and surface reconstructions of phantom samples, comparing also the extracted results with standard time-domain approaches. The findings of the study in this Letter could be utilized towards the development of inexpensive PA microscopes with multispectral capabilities for a wide range of biomedical studies, requiring the sensitive detection of endogenous or exogenous absorbers in tissues.
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