Photoacoustic imaging using lock-in amplification and pulsed fiber lasers

被引：2

作者：

Shi, Wei ^{[1
]}

Hajireza, Parsin ^{[1
]}

Zemp, Roger ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2M7, Canada

来源：

PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2016 | 2016年 / 9708卷

关键词：

lock-in amplification; photoacoustic; fiber laser; MICROSCOPY;

D O I：

10.1117/12.2211109

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Lock-in amplification can provide high sensitive detection in noise that is orders of magnitude higher than the signal. Here, we report a photoacoustic methodology using pulsed fiber lasers and lock-in amplification. We demonstrate phantom measurements comparing the signal-to-noise of our lock-in technique with broadband time-domain measurements. Our lock-in technique was shown to exhibit signal-to-noise ratios significantly more sensitive than the broadband detection techniques.

引用

页数：6

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