Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/103126
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Type: | Journal article |
Title: | Refractometric micro-sensor using a mirrored capillary resonator |
Author: | Morrish, W. West, P. Orlando, N. Klantsataya, E. Gardner, K. Lane, S. Decorby, R. François, A. Meldrum, A. |
Citation: | Optics Express, 2016; 24(22):24959-24970 |
Publisher: | Optical Society of America |
Issue Date: | 2016 |
ISSN: | 1094-4087 1094-4087 |
Statement of Responsibility: | William Morrish, Peter West, Nathan Orlando, Elizaveta Klantsataya, Kirsty Gardner, Stephen Lane, Raymond Decorby, Alexandre François, and Alkiviathes Meldrum |
Abstract: | We report on a flow-through optical sensor consisting of a microcapillary with mirrored channels. Illuminating the structure from the side results in a complicated spectral interference pattern due to the different cavities formed between the inner and outer capillary walls. Using a Fourier transform technique to isolate the desired channel modes and measure their resonance shift, we obtain a refractometric detection limit of (6.3 ± 1.1) x 10−6 RIU near a center wavelength of 600 nm. This simple device demonstrates experimental refractometric sensitivities up to (5.6 ± 0.2) x 102 nm/RIU in the visible spectrum, and it is calculated to reach 1540 nm/RIU with a detection limit of 2.3 x 10−6 RIU at a wavelength of 1.55 µm. These values are comparable to or exceed some of the best Fabry-Perot sensors reported to date. Furthermore, the device can function as a gas or liquid sensor or even as a pressure sensor owing to its high refractometric sensitivity and simple operation. |
Description: | Published 17 Oct 2016 |
Rights: | © 2016 Optical Society of America. Open Access - CC BY license. |
DOI: | 10.1364/OE.24.024959 |
Published version: | http://dx.doi.org/10.1364/oe.24.024959 |
Appears in Collections: | Aurora harvest 3 IPAS publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_103126.pdf | Published version | 2.19 MB | Adobe PDF | View/Open |
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