[1] R CAO, J J ZHAO, L LI et al. Optical-resolution photoacoustic microscopy with a needle-shaped beam. Nature Photonics, 17, 89-95(2023).

[2] R CAO, S D NELSON, S DAVIS et al. Label-free intraoperative histology of bone tissue via deep-learning-assisted ultraviolet photoacoustic microscopy. Nature Biomedical Engineering, 7, 124-134(2023).

[3] B X HUANG, T T W WONG. Review of low-cost light sources and miniaturized designs in photoacoustic microscopy. Journal of Biomedical Optics, 29, S11503(2024).

[4] D SEONG, E LEE, Y KIM et al. Three-dimensional reconstructing undersampled photoacoustic microscopy images using deep learning. Photoacoustics, 29, 100429(2023).

[5] W SONG, F YANG, C J MIN et al. Toward ultrasensitive， broadband， reflection-mode in vivo photoacoustic microscopy using a bare glass. Laser & Photonics Reviews, 17, 2200030(2023).

[6] T D LE, J J MIN, C LEE. Enhanced resolution and sensitivity acoustic-resolution photoacoustic microscopy with semi/unsupervised GANs. Scientific Reports, 13, 13423(2023).

[7] J J YAO, C KIM, M KOLIOS et al. Editorial： Breaking the speed limits in photoacoustic microscopy. Photoacoustics, 32, 100541(2023).

[8] C D LY, V T NGUYEN, T H VO et al. Full-view in vivo skin and blood vessels profile segmentation in photoacoustic imaging based on deep learning. Photoacoustics, 25, 100310(2022).

[9] H F ZHANG, K MASLOV, G STOICA et al. Functional photoacoustic microscopy for high-resolution and noninvasive in vivo imaging. Nature Biotechnology, 24, 848-851(2006).

[10] M NASIRIAVANAKI, J XIA, H L WAN et al. High-resolution photoacoustic tomography of resting-state functional connectivity in the mouse brain. Proceedings of the National Academy of Sciences of the United States of America, 111, 21-26(2014).

[11] S W CHO, V T NGUYEN, A DISPIRITO et al. Sounding out the dynamics： a concise review of high-speed photoacoustic microscopy. Journal of Biomedical Optics, 29, S11521(2024).

[12] Y LI, R Q LIN, C B LIU et al. In vivo photoacoustic/ultrasonic dual-modality endoscopy with a miniaturized full field-of-view catheter. Journal of Biophotonics, 11(2018).

[13] C ZHANG, H X ZHAO, S XU et al. Multiscale high-speed photoacoustic microscopy based on free-space light transmission and a MEMS scanning mirror. Optics Letters, 45, 4312-4315(2020).

[14] Z Y WANG, F YANG, Z W CHENG et al. Quantitative multilayered assessment of skin lightening by photoacoustic microscopy. Quantitative Imaging in Medicine and Surgery, 12, 470-480(2022).

[15] X Y ZHU, Q HUANG, A DISPIRITO et al. Real-time whole-brain imaging of hemodynamics and oxygenation at micro-vessel resolution with ultrafast wide-field photoacoustic microscopy. Light, 11, 138(2022).

[16] Y X SHAN, Y S DONG, W SONG et al. Spectroscopically resolved photoacoustic microscopy using a broadband surface plasmon resonance sensor. Applied Physics Letters, 120, 123701(2022).

[17] H FANG, L V WANG. M-mode photoacoustic particle flow imaging. Optics Letters, 34, 671-673(2009).

[18] Y Q TANG, W LIU, Y LI et al. Concurrent photoacoustic and ultrasound microscopy with a coaxial dual-element ultrasonic transducer. Visual Computing for Industry， Biomedicine， and Art, 1, 3(2018).

[19] Y LI, T T W WONG, J H SHI et al. Multifocal photoacoustic microscopy using a single-element ultrasonic transducer through an ergodic relay. Light, 9, 135(2020).

[20] C LIU, L D WANG. Functional photoacoustic microscopy of hemodynamics： a review. Biomedical Engineering Letters, 12, 97-124(2022).

[21] T X WANG, R CAO, B NING et al. All-optical photoacoustic microscopy based on plasmonic detection of broadband ultrasound, 107, 153702(2015).

[22] W J WESTERVELD, M MAHMUD-UL-HASAN, R SHNAIDERMAN et al. Sensitive， small， broadband and scalable optomechanical ultrasound sensor in silicon photonics. Nature Photonics, 15, 341-345(2021).

[23] E ZHANG, J LAUFER, P BEARD. Backward-mode multiwavelength photoacoustic scanner using a planar Fabry-Perot polymer film ultrasound sensor for high-resolution three-dimensional imaging of biological tissues. Applied Optics, 47, 561-577(2008).

[24] J A GUGGENHEIM, J LI, T J ALLEN et al. Ultrasensitive Plano-concave optical microresonators for ultrasound sensing. Nature Photonics, 11, 714-719(2017).

[25] Y Z LIANG, W B FU, Q LI et al. Optical-resolution functional gastrointestinal photoacoustic endoscopy based on optical heterodyne detection of ultrasound. Nature Communications, 13, 7604(2022).

[26] X X ZHONG, Y Z LIANG, X Y WANG et al. Free-moving-state microscopic imaging of cerebral oxygenation and hemodynamics with a photoacoustic fiberscope. Light, 13, 5(2024).

[27] Y Z LIANG, L JIN, L D WANG et al. Fiber-laser-based ultrasound sensor for photoacoustic imaging. Scientific Reports, 7, 40849(2017).

[28] B O GUAN, L JIN, J MA et al. Flexible fiber-laser ultrasound sensor for multiscale photoacoustic imaging. Opto-Electronic Advances, 4, 200081(2021).