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Interaction between fiber modes and surface plasmon waves: Spectral properties

Interaction between fiber modes and surface plasmon waves: Spectral properties
Interaction between fiber modes and surface plasmon waves: Spectral properties

The interaction between a guided mode of a single-mode optical fiber and a surface plasmon wave supported by a thin metal overlayer is studied. A theoretical description is given of this phenomenon based on the mode expansion and propagation method. It is demonstrated that the interaction can take place only within a narrow wavelength range therefore is manifested by a dip in the spectrum of the transmitted optical power. One can control the wavelength position of the dip by varying the refractive index of the superstate. Experimental study of the realized structure, consisting of a single-mode optical fiber with locally removed cladding and a thin gold overlayer, shows that the 2 × 10-3 change in the refractive index of the superstrate shifts the dip by ∼10 nm.

0146-9592
1403-1405
Homola, Jiří
9ae778bd-5e0d-4e3c-9597-17409470a575
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Čtyroký, Jiří
1a8cfc78-d014-48d6-a2b5-b9764f7a859a
Homola, Jiří
9ae778bd-5e0d-4e3c-9597-17409470a575
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Čtyroký, Jiří
1a8cfc78-d014-48d6-a2b5-b9764f7a859a

Homola, Jiří, Slavík, Radan and Čtyroký, Jiří (1997) Interaction between fiber modes and surface plasmon waves: Spectral properties. Optics Letters, 22 (18), 1403-1405. (doi:10.1364/OL.22.001403).

Record type: Article

Abstract

The interaction between a guided mode of a single-mode optical fiber and a surface plasmon wave supported by a thin metal overlayer is studied. A theoretical description is given of this phenomenon based on the mode expansion and propagation method. It is demonstrated that the interaction can take place only within a narrow wavelength range therefore is manifested by a dip in the spectrum of the transmitted optical power. One can control the wavelength position of the dip by varying the refractive index of the superstate. Experimental study of the realized structure, consisting of a single-mode optical fiber with locally removed cladding and a thin gold overlayer, shows that the 2 × 10-3 change in the refractive index of the superstrate shifts the dip by ∼10 nm.

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More information

Published date: 15 September 1997
Additional Information: © 1997 Optical Society of America

Identifiers

Local EPrints ID: 467652
URI: http://eprints.soton.ac.uk/id/eprint/467652
ISSN: 0146-9592
PURE UUID: d5a1c1b4-c10d-4d0e-bbbb-5eb4f52517f2
ORCID for Radan Slavík: ORCID iD orcid.org/0000-0002-9336-4262

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Date deposited: 18 Jul 2022 18:11
Last modified: 17 Mar 2024 03:17

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Contributors

Author: Jiří Homola
Author: Radan Slavík ORCID iD
Author: Jiří Čtyroký

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