Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating

doi:10.1117/1.Oe.58.6.067102

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	Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating
	J.Qiu; J.Xu; F.Fan
	2019
发表期刊	Optical Engineering
ISSN	0091-3286
卷号	58 期号:6 页码:6
摘要	A double-layer subwavelength dielectric grating has been designed, fabricated, and characterized for terahertz (THz) wave asymmetric transmission. The subwavelength grating resonance effect and the first-order diffraction effect of the two different grating structures lead to the different light paths of the forward and backward waves, and thus the one-way transmission can be realized. The transmission and resonance properties of this grating with different polarization and propagation directions have been demonstrated experimentally and theoretically, which show that this is a nonmagnetic one-way transmission device with an extinction ratio of over 15 dB and insertion loss of lower than 5 dB at 1.45 THz. We provide an effective way to nonmagnetic THz asymmetric transmission devices operating at room temperature without rotating or converting the polarization state of incident wave. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)
关键词	Terahertz,asymmetric transmission,subwavelength dielectric grating,one-way transmission,light,slit,Optics
DOI	10.1117/1.Oe.58.6.067102
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63106
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J.Qiu,J.Xu,F.Fan. Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating[J]. Optical Engineering,2019,58(6):6.
APA	J.Qiu,J.Xu,&F.Fan.(2019).Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating.Optical Engineering,58(6),6.
MLA	J.Qiu,et al."Terahertz wave asymmetric transmission based on double-layer subwavelength dielectric grating".Optical Engineering 58.6(2019):6.

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