%0 Journal Article
%T Laser scanning laser diode photoacoustic microscopy system
%A Mohsen Erfanzadeh
%A Patrick D. Kumavor
%A Quing Zhu
%J Archive of "Photoacoustics".
%D 2018
%R 10.1016/j.pacs.2017.10.001
%X The development of low-cost and fast photoacoustic microscopy systems enhances the clinical applicability of photoacoustic imaging systems. To this end, we present a laser scanning laser diode-based photoacoustic microscopy system. In this system, a 905 nm, 325 W maximum output peak power pulsed laser diode with 50 ns pulsewidth is utilized as the light source. A combination of aspheric and cylindrical lenses is used for collimation of the laser diode beam. Two galvanometer scanning mirrors steer the beam across a focusing aspheric lens. The lateral resolution of the system was measured to be£¿¡«21 ¦Ìm using edge spread function estimation. No averaging was performed during data acquisition. The imaging speed is ¡«370 A-lines per second. Photoacoustic microscopy images of human hairs, ex vivo mouse ear, and ex vivo porcine ovary are presented to demonstrate the feasibility and potentials of the proposed system
%K Photoacoustic imaging
%K Diode lasers
%K Medical imaging
%K Biological imaging
%K Low-cost sources
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5699884/