Journal
OPTICS EXPRESS
Volume 21, Issue 23, Pages 27841-27851Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.027841
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Funding
- National Natural Science Foundation of China [61172059, 51302026]
- Ph.D Programs Foundation of Ministry of Education of China [20110041120015]
- Postdoctoral Gathering Project of Liaoning Province [2011921008]
- Fundamental Research for the Central University [DUT12JB01]
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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
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