Increased laser penetration depth due to laser-induced microbubbles combined with ultrasound in scattering media

Jinwoo Kim; Haemin Kim; Jin Ho Chang

doi:10.1117/12.2650300

27 March 2023 Increased laser penetration depth due to laser-induced microbubbles combined with ultrasound in scattering media

Jinwoo Kim, Haemin Kim, Jin Ho Chang

Author Affiliations +

Proceedings Volume PC12379, Photons Plus Ultrasound: Imaging and Sensing 2023; PC1237935 (2023) https://doi.org/10.1117/12.2650300
Event: SPIE BiOS, 2023, San Francisco, California, United States

Conference Poster

Abstract

While laser can acquire ultra-high-resolution image at desired area, the penetration depth of light is limited due to tissue scattering, making it difficult to reach deep depths. For this, we previously proposed a technique that uses ultrasonic energy to temporarily generate bubbles in the ultrasonic path to suppress scattering and increase the penetration depth. However, it is hard to accurately create bubbles in a preferred position due to randomly generated within the depth of focus. In this study, we introduce a Laser-induced bubble generation technique combined with ultrasound that can make bubbles at precise locations while maintaining high light transmittance.

Citation Download Citation

Jinwoo Kim, Haemin Kim, and Jin Ho Chang "Increased laser penetration depth due to laser-induced microbubbles combined with ultrasound in scattering media", Proc. SPIE PC12379, Photons Plus Ultrasound: Imaging and Sensing 2023, PC1237935 (27 March 2023); https://doi.org/10.1117/12.2650300

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