光声成像激励光源的现状及选用

Status and selection of photoacoustic imaging exciting laser sources

随着光声成像技术研究的迅猛发展,其越来越多地被应用于生物医学成像及检测的各个方面。由于现有光声成像产品多受限于其激励光源,导致结构复杂、体积庞大、价格昂贵,限制了其进一步普及和推广。分析了光声成像对光源的限制和要求,总结了现有Nd∶YAG、光学参量振荡器、半导体激光器及发光二极管等不同种类光声光源的现状和优劣,为光声成像技术研究和光声成像产品研制中对光声光源的选择提供相应的参考和指导。

With the rapid development of photoacoustic imaging, it is increasingly used in aspects of biomedical imaging and diagnosis.The existing photoacoustic imaging products are limited to further popularization and promotion because of the excitation light sources, which lead to complex structure, large volume and high cost.The limitations and requirements of light source in photoacoustic imaging were analyzed.The present situation, advantages and disadvantages of different types of photoacoustic sources, including Nd∶YAG, optical parametric oscillator, semiconductor lasers and light-emitting diode were summarized.This work should be helpful to select appropriate light source for photoacoustic imaging technology research and photoacoustic imaging product development.