Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons
Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons
A tunable plasmonic nanocavity which consists of a metallic groove with submerged ultra-thin Ge2Sb2Te5 film is proposed for controlling the on/off characteristics of directional surface plasmon polaritions (SPPs) launching. Different mechanisms of launching SPPs using two orthogonal incident polarizations are investigated to reveal the SPP generation characteristics from the proposed nanocavity. By choosing the appropriate position of Ge2Sb2Te5 film, we report that the directional launching characteristics of SPPs can be controlled by changing the phase state of extremely small volume of Ge2Sb2Te5 film, which shows up to 37 dB of extinction ratio changing characteristics.
1-4
Jeong, Hee Dong
efc8f2c2-2be8-4048-8e35-c239f61e75b5
Hwang, Chi Young
d4885f92-eab1-486c-85c0-3100b4865083
Kim, Hyuntai
cfbf9241-6bb7-4738-8e2d-4fbc5c1217cc
Choi, Muhan
d3412cde-9f60-4a94-af8f-670b54b3a69e
Lee, Seung Yeol
7f836018-3af1-4279-8d13-a8a281b2a308
1 April 2018
Jeong, Hee Dong
efc8f2c2-2be8-4048-8e35-c239f61e75b5
Hwang, Chi Young
d4885f92-eab1-486c-85c0-3100b4865083
Kim, Hyuntai
cfbf9241-6bb7-4738-8e2d-4fbc5c1217cc
Choi, Muhan
d3412cde-9f60-4a94-af8f-670b54b3a69e
Lee, Seung Yeol
7f836018-3af1-4279-8d13-a8a281b2a308
Jeong, Hee Dong, Hwang, Chi Young, Kim, Hyuntai, Choi, Muhan and Lee, Seung Yeol
(2018)
Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons.
Japanese Journal of Applied Physics, 57 (4), , [040307].
(doi:10.7567/JJAP.57.040307).
Abstract
A tunable plasmonic nanocavity which consists of a metallic groove with submerged ultra-thin Ge2Sb2Te5 film is proposed for controlling the on/off characteristics of directional surface plasmon polaritions (SPPs) launching. Different mechanisms of launching SPPs using two orthogonal incident polarizations are investigated to reveal the SPP generation characteristics from the proposed nanocavity. By choosing the appropriate position of Ge2Sb2Te5 film, we report that the directional launching characteristics of SPPs can be controlled by changing the phase state of extremely small volume of Ge2Sb2Te5 film, which shows up to 37 dB of extinction ratio changing characteristics.
Text
Jeong_2018_Jpn._J._Appl._Phys._57_040307
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More information
Accepted/In Press date: 8 January 2018
e-pub ahead of print date: 27 February 2018
Published date: 1 April 2018
Identifiers
Local EPrints ID: 419619
URI: http://eprints.soton.ac.uk/id/eprint/419619
ISSN: 0021-4922
PURE UUID: 99b4e250-911e-4622-85dc-c71c8f53653c
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Date deposited: 16 Apr 2018 16:30
Last modified: 05 Jun 2024 18:50
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Contributors
Author:
Hee Dong Jeong
Author:
Chi Young Hwang
Author:
Hyuntai Kim
Author:
Muhan Choi
Author:
Seung Yeol Lee
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