Refractometric sensors based on multimode interference in a thin-film coated singlemode-multimode-single-mode structure with reflection configuration

Ignacio Del Villar; Abian B. Socorro; Jesus M. Corres; Francisco J. Arregui; Ignacio R. Matias

doi:10.1364/AO.53.003913

Refractometric sensors based on multimode interference in a thin-film coated singlemode-multimode-single-mode structure with reflection configuration

Ignacio Del Villar^*
, Abian B. Socorro
, Jesus M. Corres
, Francisco J. Arregui
, Ignacio R. Matias

^*Corresponding author for this work

Public University of Navarre

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Thin-film coated single-mode-multimode-single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness of the thin film and of the diameter of the multimode segment in the SMS structure, a seven-fold improvement can be obtained in the sensitivity of the device to the surrounding medium refractive index, achieving a maximum sensitivity of 1199.18 nm/refractive index unit for the range of refractive indices from 1.321 to 1.382. Using layer-by-layer self-assembly for deposition, both on the cladding and on the tip of the multimode segment, allows the reflected power to increase, which avoids the application of a mirror on the tip of the multimode segment.

Original language	English
Pages (from-to)	3913-3919
Number of pages	7
Journal	Applied Optics
Issue number	18
DOIs	https://doi.org/10.1364/AO.53.003913
Publication status	Published - 20 Jun 2014
Externally published	Yes

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title = "Refractometric sensors based on multimode interference in a thin-film coated singlemode-multimode-single-mode structure with reflection configuration",

abstract = "Thin-film coated single-mode-multimode-single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness of the thin film and of the diameter of the multimode segment in the SMS structure, a seven-fold improvement can be obtained in the sensitivity of the device to the surrounding medium refractive index, achieving a maximum sensitivity of 1199.18 nm/refractive index unit for the range of refractive indices from 1.321 to 1.382. Using layer-by-layer self-assembly for deposition, both on the cladding and on the tip of the multimode segment, allows the reflected power to increase, which avoids the application of a mirror on the tip of the multimode segment.",

author = "\{Del Villar\}, Ignacio and Socorro, \{Abian B.\} and Corres, \{Jesus M.\} and Arregui, \{Francisco J.\} and Matias, \{Ignacio R.\}",

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doi = "10.1364/AO.53.003913",

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T1 - Refractometric sensors based on multimode interference in a thin-film coated singlemode-multimode-single-mode structure with reflection configuration

AU - Del Villar, Ignacio

AU - Socorro, Abian B.

AU - Corres, Jesus M.

AU - Arregui, Francisco J.

AU - Matias, Ignacio R.

PY - 2014/6/20

Y1 - 2014/6/20

N2 - Thin-film coated single-mode-multimode-single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness of the thin film and of the diameter of the multimode segment in the SMS structure, a seven-fold improvement can be obtained in the sensitivity of the device to the surrounding medium refractive index, achieving a maximum sensitivity of 1199.18 nm/refractive index unit for the range of refractive indices from 1.321 to 1.382. Using layer-by-layer self-assembly for deposition, both on the cladding and on the tip of the multimode segment, allows the reflected power to increase, which avoids the application of a mirror on the tip of the multimode segment.

AB - Thin-film coated single-mode-multimode-single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness of the thin film and of the diameter of the multimode segment in the SMS structure, a seven-fold improvement can be obtained in the sensitivity of the device to the surrounding medium refractive index, achieving a maximum sensitivity of 1199.18 nm/refractive index unit for the range of refractive indices from 1.321 to 1.382. Using layer-by-layer self-assembly for deposition, both on the cladding and on the tip of the multimode segment, allows the reflected power to increase, which avoids the application of a mirror on the tip of the multimode segment.

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DO - 10.1364/AO.53.003913

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JO - Applied Optics

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ER -

Refractometric sensors based on multimode interference in a thin-film coated singlemode-multimode-single-mode structure with reflection configuration

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