Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons

Hee Dong Jeong; Chi Young Hwang; Hyuntai Kim; Muhan Choi; Seung Yeol Lee

doi:10.7567/JJAP.57.040307

Tunable plasmonic nanocavity with Ge₂Sb₂Te₅ film for directional launching of surface plasmons

Hee Dong Jeong
, Chi Young Hwang
, Hyuntai Kim
, Muhan Choi
, Seung Yeol Lee

Kyungpook National University
Electronics and Telecommunications Research Institute
University of Southampton

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

4 Scopus citations

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.

Original language	English
Article number	040307
Journal	Japanese Journal of Applied Physics
Volume	57
Issue number	4
DOIs	https://doi.org/10.7567/JJAP.57.040307
State	Published - Apr 2018

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title = "Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons",

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.",

author = "Jeong, \{Hee Dong\} and Hwang, \{Chi Young\} and Hyuntai Kim and Muhan Choi and Lee, \{Seung Yeol\}",

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doi = "10.7567/JJAP.57.040307",

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T1 - Tunable plasmonic nanocavity with Ge2Sb2Te5 film for directional launching of surface plasmons

AU - Jeong, Hee Dong

AU - Hwang, Chi Young

AU - Kim, Hyuntai

AU - Choi, Muhan

AU - Lee, Seung Yeol

PY - 2018/4

Y1 - 2018/4

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85044408539

U2 - 10.7567/JJAP.57.040307

DO - 10.7567/JJAP.57.040307

M3 - Article

AN - SCOPUS:85044408539

SN - 0021-4922

VL - 57

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 4

M1 - 040307

ER -

Tunable plasmonic nanocavity with Ge₂Sb₂Te₅ film for directional launching of surface plasmons

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