期刊
OPTICA
卷 4, 期 4, 页码 430-433出版社
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.4.000430
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资金
- U.S. Department of Energy (DOE) [DE-244 SC0014372]
- National Science Foundation (NSF) [ECCS-1542015]
The marriage of micro/nanoelectromechanical systems with metamaterials offers a viable route to achieving reconfigurable devices, which control the emission of energy. Here we propose and demonstrate the idea of a metamaterial microelectromechanical system (MEMS) capable of tailoring the energy emitted from a surface, without changing the temperature, but, instead, only altering the spectral emissivity. Our metamaterial achieves a range of emissivities equivalent to a nearly 20 degrees C temperature change when viewed with a thermal infrared camera. We tessellate a surface with individually reconfigurable MEMS metamaterial pixels, thus realizing a spatiotemporal emitter capable of displaying thermal infrared patterns up to 110 kHz. Our results may be scaled to nearly any sub-optical range of the electromagnetic spectrum, and validate the potential of MEMS metamaterials to operate as reconfigurable multifunctional devices with unprecedented energy control capabilities. (C) 2017 Optical Society of America
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