期刊
APPLIED PHYSICS LETTERS
卷 94, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3073749
关键词
biological tissues; biomedical optical imaging; biomedical ultrasonics; eye; laser applications in medicine; patient diagnosis; photoacoustic effect; ultrasonic transducers
资金
- NIH [P41-EB002182]
- Clinical and Translational Science Center at Weill Cornell Medical College [UL1 RR024996]
- Dyson Foundation
- Riverside Research Institute
- National Center for Research Resources [RR03037]
- National Institutes of Health
We report a photoacoustic imager that utilizes a focused laser beam in combination with a 20 MHz ultrasound focusing transducer to obtain micron-resolution tissue images over a long working distance. The imager is based on a ring transducer that combines ultrasonic and laser beams collinearly and confocally in a monolithic element. The combination of focused laser beam and short pulse irradiation led to significant improvement in lateral and axial resolutions compared to the pulse-echo ultrasonic imaging technique or photoacoustic imaging with an unfocused laser. Potential applications include clinical examination of the eye and characterization of thin and superficial tissues.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据