Air-coupled ultrasound detection using capillary-based optical ring resonators

Abstract We experimentally demonstrate and theoretically analyze high Q-factor (~107) capillary-based optical ring resonators for non-contact detection of air-coupled ultrasound. Noise equivalent pressures in air as low as 215 mPa/√Hz and 41 mPa/√Hz at 50 kHz and 800 kHz in air, respectively, are ac...

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Autores principales:	Kyu Hyun Kim, Wei Luo, Cheng Zhang, Chao Tian, L. Jay Guo, Xueding Wang, Xudong Fan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9b0ed482a46244c89554daff7ffcb5f3
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spelling	oai:doaj.org-article:9b0ed482a46244c89554daff7ffcb5f32021-12-02T16:06:42ZAir-coupled ultrasound detection using capillary-based optical ring resonators10.1038/s41598-017-00134-72045-2322https://doaj.org/article/9b0ed482a46244c89554daff7ffcb5f32017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00134-7https://doaj.org/toc/2045-2322Abstract We experimentally demonstrate and theoretically analyze high Q-factor (~107) capillary-based optical ring resonators for non-contact detection of air-coupled ultrasound. Noise equivalent pressures in air as low as 215 mPa/√Hz and 41 mPa/√Hz at 50 kHz and 800 kHz in air, respectively, are achieved. Furthermore, non-contact detection of air-coupled photoacoustic pulses optically generated from a 200 nm thick Chromium film is demonstrated. The interaction of an acoustic pulse and the mechanical mode of the ring resonator is also studied. Significant improvement in detection bandwidth is demonstrated by encapsulating the ring resonator in a damping medium. Our work will enable compact and sensitive ultrasound detection in many applications, such as air-coupled non-destructive ultrasound testing, photoacoustic imaging, and remote sensing. It will also provide a model system for fundamental study of the mechanical modes in the ring resonator.Kyu Hyun KimWei LuoCheng ZhangChao TianL. Jay GuoXueding WangXudong FanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kyu Hyun Kim Wei Luo Cheng Zhang Chao Tian L. Jay Guo Xueding Wang Xudong Fan Air-coupled ultrasound detection using capillary-based optical ring resonators
description	Abstract We experimentally demonstrate and theoretically analyze high Q-factor (~107) capillary-based optical ring resonators for non-contact detection of air-coupled ultrasound. Noise equivalent pressures in air as low as 215 mPa/√Hz and 41 mPa/√Hz at 50 kHz and 800 kHz in air, respectively, are achieved. Furthermore, non-contact detection of air-coupled photoacoustic pulses optically generated from a 200 nm thick Chromium film is demonstrated. The interaction of an acoustic pulse and the mechanical mode of the ring resonator is also studied. Significant improvement in detection bandwidth is demonstrated by encapsulating the ring resonator in a damping medium. Our work will enable compact and sensitive ultrasound detection in many applications, such as air-coupled non-destructive ultrasound testing, photoacoustic imaging, and remote sensing. It will also provide a model system for fundamental study of the mechanical modes in the ring resonator.
format	article
author	Kyu Hyun Kim Wei Luo Cheng Zhang Chao Tian L. Jay Guo Xueding Wang Xudong Fan
author_facet	Kyu Hyun Kim Wei Luo Cheng Zhang Chao Tian L. Jay Guo Xueding Wang Xudong Fan
author_sort	Kyu Hyun Kim
title	Air-coupled ultrasound detection using capillary-based optical ring resonators
title_short	Air-coupled ultrasound detection using capillary-based optical ring resonators
title_full	Air-coupled ultrasound detection using capillary-based optical ring resonators
title_fullStr	Air-coupled ultrasound detection using capillary-based optical ring resonators
title_full_unstemmed	Air-coupled ultrasound detection using capillary-based optical ring resonators
title_sort	air-coupled ultrasound detection using capillary-based optical ring resonators
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9b0ed482a46244c89554daff7ffcb5f3
work_keys_str_mv	AT kyuhyunkim aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT weiluo aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT chengzhang aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT chaotian aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT ljayguo aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT xuedingwang aircoupledultrasounddetectionusingcapillarybasedopticalringresonators AT xudongfan aircoupledultrasounddetectionusingcapillarybasedopticalringresonators
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Air-coupled ultrasound detection using capillary-based optical ring resonators

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