Optical-resolution photoacoustic microscopy based on two-dimensional scanning galvanometer
- 9 January 2012
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 100 (2), 023702
- https://doi.org/10.1063/1.3675907
Abstract
An optical-resolution photoacoustic microscopysystem was designed and fabricated by integration of a two-dimensional scanning galvanometer, an objective lens, an unfocused ultrasound transducer, and a sample stage. The lateral resolution of the system was measured to be ∼500 nm. Ex vivo erythrocytes were used to test the imaging capability of the system, and a single erythrocyte was mapped with high contrast. Furthermore, invivo blood vessels of a mouse ear were clearly shown, and the injured blood vessels were also monitored. The experimental results demonstrate that galvanometer-based photoacoustic microscopy holds clinical potential in detecting lesion of erythrocyte and blood vessel.Keywords
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