Abrupt autofocusing beam meta-optics for biomedical applications

Surag Suresh; Sunil Vyas; Cheng Hung Chu; Yuan Luo; Pan-Chyr Yang; J. Andrew Yeh; Din Ping Tsai

doi:10.1117/12.2677266

5 October 2023 Abrupt autofocusing beam meta-optics for biomedical applications

Surag Suresh, Sunil Vyas, Cheng Hung Chu, Yuan Luo, Pan-Chyr Yang, J. Andrew Yeh, Din Ping Tsai

Proceedings Volume PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI; PC1264813 (2023) https://doi.org/10.1117/12.2677266
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

We have successfully designed, fabricated, and demonstrated the use of a planar dielectric metasurface to generate AAF beams for biomedical applications. Our results demonstrate the potential of using metasurface for precise control of the local phase of light and the generation of unique optical properties. The high-intensity contrast between the initial and focal plane was used for fluorescence-guided light treatment of microspheres and mouse cardiac slices. Our ultrathin (800 nm) Nano-photonics metasurface allows for designing miniature integrated optical devices for biomedical instruments. The AAF beam& #39;s high-energy-density hotspot could be useful in Nano-surgery, high-resolution imaging, and photo-dynamic therapy.

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Citation Download Citation

Surag Suresh, Sunil Vyas, Cheng Hung Chu, Yuan Luo, Pan-Chyr Yang, J. Andrew Yeh, and Din Ping Tsai "Abrupt autofocusing beam meta-optics for biomedical applications", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC1264813 (5 October 2023); https://doi.org/10.1117/12.2677266

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KEYWORDS

Biomedical applications

Biological samples

Laser beam propagation

Skin

Tissue optics

Tissues

Nanophotonics

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