Illustration of the pump color-controlled metadevice for coded terahertz switching. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Illustration of the pump color-controlled metadevice for coded terahertz switching.

Caption

Illustration of the pump color-controlled metadevice for coded terahertz switching. a, Transmitted terahertz waves can be separately manipulated using two pumped lasers, each carrying different colors. The metadevice is a hybrid with arranged DBRs and a terahertz metasurface. b, Schematic of a resonating system within one-unit cell supporting multiple coupled terahertz meta-atoms and two precisely aligned DBR mirrors. c-d, Reflective optical micrographs of the fabricated metadevice with and without hybridizing visible metasurface, respectively. Scale bar: 25 μm. The golden section represents the gold metal metasurface, which has detailed geometrical properties as specified in the Supporting Information. The silicon island measures 15×15 μm2 and is represented by an orange square patch. c-f, Reflectivity spectra for two DBRs corresponding to an area with CM1 and for a location with CM2. (g) Terahertz transmission spectrum of the color-coded metadevice.

Credit

by Weibao He, Xiang'ai Cheng, Siyang Hu, Ziheng Ren, Zhongyi Yu, Shun Wan, Yuze Hu, Tian Jiang

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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