Abstract

We present a contrast-enhanced Grueneisen-relaxation photoacoustic microscopy (GR-PAM) by a home-made high-power thulium-doped fiber laser (TDFL) at 1725 nm. The images of carbon fiber and artery plaque show a significant signal-to-noise (SNR) improvement (over 16dB).

© 2020 The Author(s)

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