Terahertz vortex beam generator based on bound states in the continuum

doi:10.1364/OE.431814

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	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
刊名	Optics Express
	2021
卷号	29 期号:16 页码:25270-25279
ISSN号	10944087
DOI	10.1364/OE.431814
英文摘要	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
URL标识	查看原文
内容类型	期刊论文
源URL	[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.