Acoustic Sensing Based on an Ultrathin Freestanding Whispering-gallery-mode Laser

Zhiyang Xu; Tianrui Zhai

doi:10.1364/FLATOPTICS.2021.JW1A.5

OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT)
OSA Technical Digest (Optica Publishing Group, 2021),
paper JW1A.5
•https://doi.org/10.1364/FLATOPTICS.2021.JW1A.5

Acoustic Sensing Based on an Ultrathin Freestanding Whispering-gallery-mode Laser

Zhiyang Xu and Tianrui Zhai

Freeform Optics 2021

Washington, DC United States
27 June–1 July 2021
ISBN: 978-1-943580-88-0

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Joint Postdeadline Paper Session (JW1A)

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Z. Xu and T. Zhai, "Acoustic Sensing Based on an Ultrathin Freestanding Whispering-gallery-mode Laser," in OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT), F. Capasso, W. Chen, P. Dainese, J. Fan, J. DeGroote Nelson, F. Duerr, J. Rogers, J. Rolland, P. Clark, R. Pfisterer, H. Rehn, S. Thibault, M. Jenkins, D. Wook Kim, and N. Trela-McDonald, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper JW1A.5.

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Abstract

Whispering-gallery-mode lasing was achieved in a freestanding polymer membrane. By using the first eigenmode of a membrane vibration, an acoustic sensor with a 0.15-Pa limit of detection was demonstrated via laser bandwidth broadening.

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