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In-line rainbow trapping based on plasmonic gratings in optical microfibers

In-line rainbow trapping based on plasmonic gratings in optical microfibers
In-line rainbow trapping based on plasmonic gratings in optical microfibers
In-line rainbow trapping is demonstrated in an optical microfiber with a plasmonic grating. The dispersions of x- and y-polarized surface plasmon polariton (SPP) modes are analyzed in detail by the 3D finite element method (FEM). In this system, the incident light is coupled from an optical microfiber into a graded grating. The plasmonic structure shows strong localization as the dispersion curve approaches cut-off frequency. Gradually increasing the depth or width of the grating elements ensures that the cut-off frequency of the SPP mode varies with the position along the microfiber. Near-infrared light at different frequencies can be trapped in different spatial positions. The in-line rainbow trapping is important for potential applications including optical storage, slow light, optical switch and enhanced light-matter interactions in fiber integrated devices and highly integrated optical circuits.
1094-4087
16552-16560
Guan, Chunying
a2d5b5f2-bd7c-4968-8f70-8c0ffdb09948
Shi, Jinhui
1d94402c-0395-4b49-afe6-bede4701accb
Ding, Ming
12b31750-03c4-4f76-aab6-64feb8f13bf0
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Hua, Ping
92fa76e2-970b-45f5-a459-d9f95e735303
Yuan, Libo
0e48503a-1d82-44a0-9ca9-7b90f74097a3
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Guan, Chunying
a2d5b5f2-bd7c-4968-8f70-8c0ffdb09948
Shi, Jinhui
1d94402c-0395-4b49-afe6-bede4701accb
Ding, Ming
12b31750-03c4-4f76-aab6-64feb8f13bf0
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Hua, Ping
92fa76e2-970b-45f5-a459-d9f95e735303
Yuan, Libo
0e48503a-1d82-44a0-9ca9-7b90f74097a3
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Guan, Chunying, Shi, Jinhui, Ding, Ming, Wang, Pengfei, Hua, Ping, Yuan, Libo and Brambilla, Gilberto (2013) In-line rainbow trapping based on plasmonic gratings in optical microfibers. Optics Express, 21 (14), 16552-16560. (doi:10.1364/OE.21.016552).

Record type: Article

Abstract

In-line rainbow trapping is demonstrated in an optical microfiber with a plasmonic grating. The dispersions of x- and y-polarized surface plasmon polariton (SPP) modes are analyzed in detail by the 3D finite element method (FEM). In this system, the incident light is coupled from an optical microfiber into a graded grating. The plasmonic structure shows strong localization as the dispersion curve approaches cut-off frequency. Gradually increasing the depth or width of the grating elements ensures that the cut-off frequency of the SPP mode varies with the position along the microfiber. Near-infrared light at different frequencies can be trapped in different spatial positions. The in-line rainbow trapping is important for potential applications including optical storage, slow light, optical switch and enhanced light-matter interactions in fiber integrated devices and highly integrated optical circuits.

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More information

Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 356343
URI: http://eprints.soton.ac.uk/id/eprint/356343
ISSN: 1094-4087
PURE UUID: f452cf0e-e312-4408-8532-b0777cfb04e9
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 12 Sep 2013 17:01
Last modified: 02 Apr 2022 01:38

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Contributors

Author: Chunying Guan
Author: Jinhui Shi
Author: Ming Ding
Author: Pengfei Wang
Author: Ping Hua
Author: Libo Yuan

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