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https://hdl.handle.net/2440/125635
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Type: | Journal article |
Title: | Compact plasmonic fiber tip for sensitive and fast humidity and human breath monitoring |
Author: | Du, B. Yang, D. Ruan, Y. Jia, P. Ebendorff-Heidepriem, H. |
Citation: | Optics Letters, 2020; 45(4):985-988 |
Publisher: | OSA Publishing |
Issue Date: | 2020 |
ISSN: | 0146-9592 1539-4794 |
Statement of Responsibility: | Bobo Du, Dexing Yang, Yinlan Ruan, Peipei Jia and Heike Ebendorff-Heidepriem |
Abstract: | We demonstrate a plasmonic fiber tip for relative humidity (RH) detection by integrating a gold nanomembrane onto the end-face of a multimode optical fiber via a flexible and high-efficiency transfer method. Fast water condensation/evaporation is responsible for the high performance of the fiber tip in response to RH. A high sensitivity of 279 pm/%RH is obtained in the range of 11%∼92%RH. Taking advantage of the fast dynamics (response and recovery times of 156 ms and 277 ms), the plasmonic fiber tip offers an excellent detection capability to human breaths at varied frequencies and depths. The compact, easy-fabrication, and fast-dynamics plasmonic platform has versatile potential for practical applications, including environmental and healthcare monitoring, as well as biochemical sensing. |
Keywords: | Humans Gold Breath Tests Surface Plasmon Resonance Equipment Design Humidity Nanostructures Optical Fibers |
Rights: | © 2020 Optical Society of America. |
DOI: | 10.1364/OL.381085 |
Grant ID: | http://purl.org/au-research/grants/arc/CE140100003 |
Published version: | http://dx.doi.org/10.1364/ol.381085 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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