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

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.

Text

ID 320678 - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

Download (2MB)

Text

ome-8-6-1642 - Version of Record

Available under License Creative Commons Attribution.

Download (4MB)