Study of tunable negative index metamaterials based on phase-change material

Tun Cao; Robert  Simpson; Martin J Cryan

doi:10.1364/JOSAB.30.000439

Study of tunable negative index metamaterials based on phase-change material

Tun Cao^*, Robert Simpson, Martin J Cryan

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

48 Citations (Scopus)

Abstract

The tunable optical response of elliptical nanohole arrays penetrating through metal–phase change material–metal (Au−Ge 2 Sb 1 Te 4 −Au ) films is numerically investigated using the finite difference time domain method in the mid-infrared spectral region. The influence of amorphous and crystalline structural states of Ge 2 Sb 1 Te 4 on the effective optical parameters of the structure is analyzed. Switching between these states provides a large wavelength shift of the structure’s effective optical parameters.

Original language	English
Pages (from-to)	439-444
Number of pages	6
Journal	Journal of the Optical Society of America B
Volume	30
Issue number	2
DOIs	https://doi.org/10.1364/JOSAB.30.000439
Publication status	Published - Feb 2013

Bibliographical note

Journal of Optical Society B

Research Groups and Themes

Photonics and Quantum

Keywords

CHANGE MEMORY
REFRACTION

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http://www.opticsinfobase.org/josab/abstract.cfm?uri=josab-30-2-439

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title = "Study of tunable negative index metamaterials based on phase-change material",

abstract = "The tunable optical response of elliptical nanohole arrays penetrating through metal–phase change material–metal (Au−Ge 2 Sb 1 Te 4 −Au ) films is numerically investigated using the finite difference time domain method in the mid-infrared spectral region. The influence of amorphous and crystalline structural states of Ge 2 Sb 1 Te 4 on the effective optical parameters of the structure is analyzed. Switching between these states provides a large wavelength shift of the structure{\textquoteright}s effective optical parameters. ",

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note = "Journal of Optical Society B",

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AU - Simpson, Robert

AU - Cryan, Martin J

N1 - Journal of Optical Society B

PY - 2013/2

Y1 - 2013/2

N2 - The tunable optical response of elliptical nanohole arrays penetrating through metal–phase change material–metal (Au−Ge 2 Sb 1 Te 4 −Au ) films is numerically investigated using the finite difference time domain method in the mid-infrared spectral region. The influence of amorphous and crystalline structural states of Ge 2 Sb 1 Te 4 on the effective optical parameters of the structure is analyzed. Switching between these states provides a large wavelength shift of the structure’s effective optical parameters.

AB - The tunable optical response of elliptical nanohole arrays penetrating through metal–phase change material–metal (Au−Ge 2 Sb 1 Te 4 −Au ) films is numerically investigated using the finite difference time domain method in the mid-infrared spectral region. The influence of amorphous and crystalline structural states of Ge 2 Sb 1 Te 4 on the effective optical parameters of the structure is analyzed. Switching between these states provides a large wavelength shift of the structure’s effective optical parameters.

KW - CHANGE MEMORY

KW - REFRACTION

U2 - 10.1364/JOSAB.30.000439

DO - 10.1364/JOSAB.30.000439

M3 - Article (Academic Journal)

SN - 0740-3224

VL - 30

SP - 439

EP - 444

JO - Journal of the Optical Society of America B

JF - Journal of the Optical Society of America B

IS - 2

ER -

Study of tunable negative index metamaterials based on phase-change material

Abstract

Bibliographical note

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Keywords

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