Sensitivity improvement of optical fiber acoustic probe for all-optical photoacoustic imaging system
Sensitivity improvement of optical fiber acoustic probe for all-optical photoacoustic imaging system
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DOI：
10.7567/apex.10.072503
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发表时间：
2017-06
影响因子：
2.3
通讯作者：
A. Seki;K. Iwai;T. Katagiri;Y. Matsuura
中科院分区：
文献类型：
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作者：
A. Seki;K. Iwai;T. Katagiri;Y. Matsuura
针对内窥镜全光学光声成像系统，设计并制作了一种基于聚合物薄膜光纤末端法布里-珀罗涉仪的声学探头。通过在光纤端面形成半反射镜和在聚合物膜外表面形成部分反射镜，提高了干涉仪的精确度。将光纤声学探头与一束用于激发光声波的中空光纤相结合，构建了光声成像系统，并成功地获得了鱼卵巢膜内毛细血管的图像。
An acoustic probe based on a Fabry–Perot interferometer composed of a polymer film attached to the end of an optical fiber was designed and fabricated for an endoscopic, all-optical photoacoustic imaging system. The finesse of the interferometer was improved by forming a half-mirror at the end of the fiber and a partial reflection mirror on the outer surface of the polymer film. A photoacoustic imaging system was constructed by combining the fiber-optic acoustic probe with a bundle of hollow optical fibers used for the excitation of the photoacoustic wave, and an image of blood capillaries in a fish ovarian membrane was successfully obtained.