Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/6548
Title: Simultaneous measurement of temperature and refractive index using focused ion beam milled Fabry-Perot cavities in optical fiber micro-tips
Authors: Ricardo Melo André
Warren Smith,SC
Becker,M
Dellith,J
Rothhardt,M
Zibaii,MI
Latifi,H
Manuel Joaquim Marques
Bartelt,H
Orlando Frazão
Issue Date: 2016
Abstract: Optical fiber micro-tips are promising devices for sensing applications in small volume and difficult to access locations, such as biological and biomedical settings. The tapered fiber tips are prepared by dynamic chemical etching, reducing the size from 125 mu m to just a few mu m. Focused ion beam milling is then used to create cavity structures on the tapered fiber tips. Two different Fabry-Perot micro-cavities have been prepared and characterized: a solid silica cavity created by milling two thin slots and a gap cavity. A third multi-cavity structure is fabricated by combining the concepts of solid silica cavity and gap cavity. This micro-tip structure is analyzed using a fast Fourier transform method to demultiplex the signals of each cavity. Simultaneous measurement of temperature and external refractive index is then demonstrated, presenting sensitivities of 15.8 pm/K and -1316 nm/RIU, respectively. (C) 2016 Optical Society of America
URI: http://repositorio.inesctec.pt/handle/123456789/6548
http://dx.doi.org/10.1364/oe.24.014053
metadata.dc.type: article
Publication
Appears in Collections:CAP - Articles in International Journals

Files in This Item:
File Description SizeFormat 
P-00K-MJM.pdf2.88 MBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.