Terahertz vortex beam generator based on bound states in the continuum

doi:10.1364/OE.431814

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	Terahertz vortex beam generator based on bound states in the continuum
	T. Bai; Q. Li; Y. Wang; Y. Chen; Z.-D. Hu and J. Wang
	2021
发表期刊	Optics Express
ISSN	10944087
卷号	29 期号:16 页码:25270-25279
摘要	Vortex beams are playing an increasingly crucial role in wireless optical communications. Traditional vortex beam generators based on spiral phase plates and metasurfaces have a geometric center in real space, which limit their convenience in practical applications. In this work, we propose that the creation of a vortex beam can be achieved by using the bound state in the continuum (BIC) supported by a photonic crystal slab structure. Theoretical analysis shows that the proposed structure can be used as a kind of "momentum-space resonators" and thus can generate vortex beams. Moreover, higher-order vortex beams can also be achieved by changing the symmetry of photonic crystal slab, thus paving the way for the application of vortex beams in the fields of quantum information processing and micro optical micromanipulation. 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
DOI	10.1364/OE.431814
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65686
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	T. Bai,Q. Li,Y. Wang,et al. Terahertz vortex beam generator based on bound states in the continuum[J]. Optics Express,2021,29(16):25270-25279.
APA	T. Bai,Q. Li,Y. Wang,Y. Chen,&Z.-D. Hu and J. Wang.(2021).Terahertz vortex beam generator based on bound states in the continuum.Optics Express,29(16),25270-25279.
MLA	T. Bai,et al."Terahertz vortex beam generator based on bound states in the continuum".Optics Express 29.16(2021):25270-25279.

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