期刊
OPTICS EXPRESS
卷 24, 期 4, 页码 3451-3463出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.003451
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资金
- EPSRC [EP/I017461/1, EP/J018678/1]
- EPSRC [EP/J018678/1, EP/I017461/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J018678/1, EP/I017461/1] Funding Source: researchfish
Multi-spectral imaging systems typically require the cumbersome integration of disparate filtering materials and detectors in order to operate simultaneously in multiple spectral regions. Each distinct waveband must be detected at different spatial locations on a single chip or by separate chips optimised for each band. Here, we report on a single component that optically multiplexes visible, Mid Infrared (4.5 mu m) and Terahertz (126 mu m) radiation thereby maximising the spectral information density. We hybridise plasmonic and metamaterial structures to form a device capable of simultaneously filtering 15 visible wavelengths and absorbing Mid Infrared and Terahertz. Our synthetic multi-spectral component could be integrated with silicon complementary metal-oxide semiconductor technology where Si photodiodes are available to detect the visible radiation and micro-bolometers available to detect the Infrared/Terahertz and render an inexpensive, mass-producible camera capable of forming coaxial visible, Infrared and Terahertz images. (C) 2016 Optical Society of America
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