Metasurface-Based Abrupt Autofocusing Beam for Biomedical Applications

Yuan Luo; Ming Lun Tseng; Sunil Vyas; Hsin Yu Kuo; Cheng Hung Chu; Mu Ku Chen; Hsiang-Chieh Lee; Wen-Pin Chen; Vin-Cent Su; Xu Shi; Hiroaki Misawa; Din Ping Tsai; Pan-Chyr Yang

doi:10.1002/smtd.202101228

Metasurface-Based Abrupt Autofocusing Beam for Biomedical Applications

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

Yuan Luo
Ming Lun Tseng
Sunil Vyas
Hsin Yu Kuo
Cheng Hung Chu
Hsiang-Chieh Lee
Wen-Pin Chen
Vin-Cent Su
Xu Shi
Hiroaki Misawa
Pan-Chyr Yang

Related Research Unit(s)

Department of Electrical Engineering

Detail(s)

Original language	English
Article number	2101228
Journal / Publication	Small Methods
Volume	6
Issue number	4
Online published	24 Feb 2022
Publication status	Published - 20 Apr 2022

Link(s)

DOI	DOI https://doi.org/10.1002/smtd.202101228 Final Published version
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Attachment(s)	Documents 96214796 Final Published version, 2.52 MB, PDF Publisher's Copyright Statement This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85125187854&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(c92c26eb-b997-4d13-82bc-bf48228eb15a).html

Abstract

Manipulation and precise delivery of optical energies in the regions of interest within specimens require different strategies. Hence, proper control of input beam parameters is a prerequisite. One of the prominent methods is metasurface optics, capable of crafting properties of light at nanoscales. Here, the generation of an abrupt autofocusing (AAF) beam by a nanophotonic metasurface for biomedical applications is demonstrated. Fluorescence guided laser microprofiling of mouse cardiac samples is experimentally investigated, using the AAF beam to deliver optical energy selectively to specific locations. In addition, photocoagulation of ex vivo swine skin tissue is performed and observed through optical coherence tomography. The results show great potentials for integrating metasurface optics to realize miniature laser surgery instruments for wide applications in biomedicine.