3 March 2014 Cross-optical-beam nonlinear photoacoustic microscopy
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We present a photoacoustic microscopy (PAM) technique with an optical sectioning capability. By combining crossoptical- beam illumination with nonlinear PAM, an axial resolution of 8.7 μm was measured, demonstrating a fourfold improvement over the acoustically determined value. Compared to methods relying on high-frequency ultrasound transducers to improve the axial resolution, our approach offers a greater working distance and a higher signal-to-noise ratio.
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Liren Zhu, Liren Zhu, Liang Gao, Liang Gao, Lei Li, Lei Li, Lidai Wang, Lidai Wang, Teng Ma, Teng Ma, Qifa Zhou, Qifa Zhou, K. Kirk Shung, K. Kirk Shung, Lihong V. Wang, Lihong V. Wang, "Cross-optical-beam nonlinear photoacoustic microscopy", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 89433H (3 March 2014); doi: 10.1117/12.2037926; https://doi.org/10.1117/12.2037926

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