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Optical properties of single crystal silver thin films on mica for high performance

Optical properties of single crystal silver thin films on mica for high performance
Optical properties of single crystal silver thin films on mica for high performance
We systematically investigate the optical properties of silver films to clear up the inconsistency in the published values of the dielectric function of silver. The silver films were deposited on mica by using a facing target sputtering system, which yielded large area single crystal of silver suitable for the fabrication of high-finesse plasmonic devices and metamaterials. We confirmed that wide variations in the optical properties of silver were associated with the overall quality of the silver films including crystal structure, thickness, and surface roughness. The quality factor of the surface plasmon polaritons calculated for the obtained single crystal is 5×103, which is about five times higher than that for polycrystalline films.
1642-1649
Uchino, Takashi
53356d82-f008-4b0e-8c7e-359c0d283b6c
Koiwa, T.
9bac1f4e-52ac-4768-9bf0-f000a94c2e04
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Uchino, Takashi
53356d82-f008-4b0e-8c7e-359c0d283b6c
Koiwa, T.
9bac1f4e-52ac-4768-9bf0-f000a94c2e04
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25

Uchino, Takashi, Koiwa, T., Ou, Jun-Yu and Fedotov, Vassili (2018) Optical properties of single crystal silver thin films on mica for high performance. Optical Materials Express, 8 (6), 1642-1649. (doi:10.1364/OME.8.001642).

Record type: Article

Abstract

We systematically investigate the optical properties of silver films to clear up the inconsistency in the published values of the dielectric function of silver. The silver films were deposited on mica by using a facing target sputtering system, which yielded large area single crystal of silver suitable for the fabrication of high-finesse plasmonic devices and metamaterials. We confirmed that wide variations in the optical properties of silver were associated with the overall quality of the silver films including crystal structure, thickness, and surface roughness. The quality factor of the surface plasmon polaritons calculated for the obtained single crystal is 5×103, which is about five times higher than that for polycrystalline films.

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Accepted/In Press date: 16 May 2018
e-pub ahead of print date: 30 May 2018
Published date: June 2018

Identifiers

Local EPrints ID: 421230
URI: https://eprints.soton.ac.uk/id/eprint/421230
PURE UUID: 90928452-eae5-4f36-9e8e-26a2954c883f
ORCID for Jun-Yu Ou: ORCID iD orcid.org/0000-0001-8028-6130

Catalogue record

Date deposited: 25 May 2018 16:30
Last modified: 01 Oct 2019 04:16

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