Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-11-18

Journal: OPTICS EXPRESS

Included Journals: Scopus、EI、SCIE

Volume: 21

Issue: 23

Page Number: 27841-27851

ISSN: 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