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Indexed by:期刊论文

Date of Publication:2013-11-18

Journal:OPTICS EXPRESS

Included Journals:SCIE、EI、Scopus

Volume:21

Issue:23

Page Number:27841-27851

ISSN No.:1094-4087

Abstract:A metal/phase-change material/metal tri-layer planar chiral metamaterial in the shape of a gammadion is numerically modelled. The chiral metamaterial is integrated with Ge2Sb2Te5 phase-change material (PCM) to accomplish a wide tuning range of the circular dichroism (CD) in the mid-infrared wavelength regime. A photothermal model is used to study the temporal variation of the temperature of the Ge2Sb2Te5 layer and to show the potential for fast switching the phase of Ge2Sb2Te5 under a low incident light intensity of 0.016mW/mu m(2). (C) 2013 Optical Society of America