Presentation
17 March 2023 In Vivo 1260-nm harmonic generation microscopy of laser-induced optical breakdown in human skin
Author Affiliations +
Abstract
Despite the effectiveness of using fractional picosecond 1064-nm Nd:YAG lasers for facial rejuvenation or resurfacing, the underlying mechanisms of the dermal remodeling with this nonablative treatment are not fully understood. We perform harmonic generation and reflectance confocal microscopy for the in vivo observation of laser-induced optical breakdown. We have found that the induced vacuoles extend to the papillary dermis using second harmonic generation imaging, which is different from the histopathology examinations and previous studies using optical coherence tomography and reflectance confocal microscopy. Our finding suggests that the fractional picosecond laser may induce collagen degeneration through suboptimal thermal effects.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Connie Liu, Pei-Che Wu, Zi-Ping Chen, Chi-Kuang Sun, Yi-Hua Liao, and Shih-Hsuan Chia "In Vivo 1260-nm harmonic generation microscopy of laser-induced optical breakdown in human skin", Proc. SPIE PC12352, Photonics in Dermatology and Plastic Surgery 2023, PC123520K (17 March 2023); https://doi.org/10.1117/12.2646555
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KEYWORDS
Laser optics

Harmonic generation

Microscopy

Skin

In vivo imaging

Tissue optics

Optical microscopy

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