Tuneable Thermal Emission Using Chalcogenide Metasurface

Cao, Tun1; Zhang, Xinyu1; Dong, Weiling2; Lu, Li2; Zhou, Xilin2; Zhuang, Xin3; Deng, Junhong3; Cheng, Xing3; Li, Guixin3,4; Simpson, Robert E.2

2018-08-20

10.1002/adom.201800169

Advanced Optical Materials   影响因子和分区

2195-1071

Modulation of thermal radiation is an essential element of infrared sensing and imaging, thermal infrared light sources, camouflage, and thermophotovoltaics. Recently, tuneable thermal emission of nanophotonic structures has been demonstrated. However, most of the current strategies involve controlling single spectral thermal emission in the far-infrared region, and blue shifting their resonances to the shorter wavelength region is rarely explored. Moreover, fast modulation of multispectral thermal radiation remains challenging. In this work, the dynamic control of multispectral thermal emission from 2 to 4 mu m from an ultrathin reconfigurable metasurface is experimentally presented based on Au/SiO2/Ge2Sb2Te5/Au multilayer. This metadevice contains several integrated thermal emitters of various wavelengths, each of which consists of gold (Au) squares array with different widths. A tuning of multispectral absorptivity (emissivity) can be achieved by transiting the state of Ge2Sb2Te5 from amorphous to crystalline. A heat-transfer model is developed to demonstrate that the reversible switching of multispectral thermal emission can be achieved in just 300 ns. The experimental demonstration along with the theoretical framework lays the foundation for designing high-speed reconfigurable multispectral thermal emitters, which, as expected, will initiate a new route to thermal engineering.

chalcogenides metamaterials phase change materials surface plasmon resonance tuneable thermal emission

SCI ; EI

英语

通讯

National Natural Science Foundation of China[11774145]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000442207500006

WILEY-V C H VERLAG GMBH

20183405733128

Antimony compounds ; Chalcogenides ; Germanium compounds ; Heat radiation ; Light sources ; Metamaterials ; Modulation ; Phase change materials ; Surface plasmon resonance ; Tellurium compounds

Heat Transfer:641.2 ; Inorganic Compounds:804.2 ; Materials Science:951

Web of Science

1.Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China
2.Singapore Univ Technol & Design, Engn Prod Dev, 8 Somapah Rd, Singapore 487372, Singapore
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China

Cao, Tun,Zhang, Xinyu,Dong, Weiling,et al. Tuneable Thermal Emission Using Chalcogenide Metasurface[J]. Advanced Optical Materials,2018,6(16).

Cao, Tun.,Zhang, Xinyu.,Dong, Weiling.,Lu, Li.,Zhou, Xilin.,...&Simpson, Robert E..(2018).Tuneable Thermal Emission Using Chalcogenide Metasurface.Advanced Optical Materials,6(16).

Cao, Tun,et al."Tuneable Thermal Emission Using Chalcogenide Metasurface".Advanced Optical Materials 6.16(2018).