Random multiple scattering enhanced photoacoustic gas spectroscopy with disordered porous ceramics

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/100562

Title:	Random multiple scattering enhanced photoacoustic gas spectroscopy with disordered porous ceramics
Authors:	Bao, H Zhang, C Miao, Y Jin, W
Issue Date:	8-Aug-2018
Source:	ACS applied materials and interfaces, 8 Aug. 2018, v. 10, no. 31, p. 26372-26377
Abstract:	Light-gas interaction can be enhanced by using disordered porous materials because multiple random scattering increases light intensity near the surface of the material. Here we report signal enhancement of photoacoustic gas spectroscopy with disordered porous ceramics. The amplitude and frequency characteristics of photoacoustic signal due to gas absorption in disordered materials are modeled theoretically. Experiment with a porous Al2O3 sample demonstrates photoacoustic signal enhancement of ∼4 times at 5 kHz.
Keywords:	Gas spectroscopy Light localization Optical fiber sensor Photoacoustic signal enhancement Porous material Random multiple scattering
Publisher:	American Chemical Society
Journal:	ACS applied materials and interfaces
ISSN:	1944-8244
EISSN:	1944-8252
DOI:	10.1021/acsami.8b06729
Rights:	© 2018 American Chemical Society This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsami.8b06729.
Appears in Collections:	Journal/Magazine Article

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Status	open access
File Version	Final Accepted Manuscript

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