Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/11861
Title: Surface plasmon resonance sensing in gaseous media with optical fiber gratings
Authors: Álvaro, GonzÁlez Vila 
Ioannou, Andreas 
Loyez, Médéric 
Debliquy, Marc 
Lahem, Driss 
Caucheteur, Christophe 
Keywords: Excimer lasers;Fiber bragg gratings;Optical fibers;Refractive index;Surface plasmon resonance;Optical fiber gratings
Category: Materials Engineering
Field: Engineering and Technology
Issue Date: 15-May-2018
Publisher: OSA - The Optical Society
Source: Optics Letters, 2018, Volume 43, Issue 10, Pages 2308-2311
DOI: https://doi.org/10.1364/OL.43.002308
Abstract: Surface plasmon resonance excitation with optical fiber gratings has been typically studied in aqueous solutions. This work describes the procedure to excite a plasmon wave in gaseous media and perform refractive index measurements in these environments. Grating photo-inscription with 193 nm excimer laser radiation allows us to obtain slightly tilted fiber Bragg gratings exhibiting a cladding mode resonance comb along several hundreds of nanometers. Their refractive index sensitive range extends from gases to liquids, so operation in both media is compared. We demonstrate that the thickness of the metal coating required for surface plasmon excitation in gases is roughly one third of the one usually used for liquids. The developed platforms exhibit a temperature insensitive response of 78 nm/RIU when tested with different gases.
URI: http://ktisis.cut.ac.cy/handle/10488/11861
ISSN: 01469592
Rights: © 2018 Optical Society of America
Type: Article
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