Multi-wavelengths Nonlinear Photoacoustic Imaging Based on Compact Laser Diode System

doi:10.1109/BIOCAS.2019.8918709

	Multi-wavelengths Nonlinear Photoacoustic Imaging Based on Compact Laser Diode System
	Hongtao Zhong; Yiyun Wang; Tingyang Duan; Daohuai Jiang; Changchun Yang; Fei Gao
	2019-10
会议录名称	2019 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS)
ISSN	2163-4025
页码	1-4
发表状态	已发表
DOI	10.1109/BIOCAS.2019.8918709
摘要	Photoacoustic imaging (PAI) combines the deep penetration of ultrasound imaging and the high absorption contrast of optical imaging, which has attracted increasing research interest in recent years. The PAI based on multi-wavelength laser source is conducive to detecting different components in the blood such as oxygen saturation. The generation of PA signals could rely on the relative low-cost pulsed laser diode. However, the multi-wavelength PAI system requires multiple pulsed laser diodes, which will multiply the cost of the imaging system. On the other hand, the amplitude of the PA signals will change when inducing the Gruneisen relaxation effect due to the heat accumulation. In this paper, we proposed a continuous multi-wavelength photoacoustic imaging (CMPAI) system based on the combination of a single-wavelength pulsed laser diode and a multi-wavelength continuous laser diode module. The continuous wave (CW) laser is adapted for heating the sample. The PA signals are induced by a single-wavelength pulsed laser. By controlling the laser irradiation sequence (pulse-CW-pulse), the images before and after heating will be attained. By proper differentiating operations, the images with different-wavelengths’ light absorption could be revealed. Furthermore, using this proposed system to detect the concentration of ink that is mixed by different portion of green and red ink would be demonstrated in the following.
关键词	Heating systems Imaging Ink Diode lasers Semiconductor lasers Absorption
会议地点	Nara, Japan
会议日期	17-19 Oct. 2019
URL	查看原文
收录类别	EI ; CPCI-S ; CPCI
原始文献类型	Conferences
引用统计
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/104535
专题	信息科学与技术学院_硕士生信息科学与技术学院_PI研究组_高飞组信息科学与技术学院_本科生信息科学与技术学院_博士生
作者单位	ShanghaiTech University,Hybrid Imaging System Laboratory,Shanghai,China
第一作者单位	上海科技大学
第一作者的第一单位	上海科技大学
推荐引用方式 GB/T 7714	Hongtao Zhong,Yiyun Wang,Tingyang Duan,et al. Multi-wavelengths Nonlinear Photoacoustic Imaging Based on Compact Laser Diode System[C],2019:1-4.