Tunable topological charge vortex microlaser

doi:10.1126/science.aba8996

GSTDTAP > 气候变化

DOI	10.1126/science.aba8996
	Tunable topological charge vortex microlaser
	Zhifeng Zhang; Xingdu Qiao; Bikashkali Midya; Kevin Liu; Jingbo Sun; Tianwei Wu; Wenjing Liu; Ritesh Agarwal; Josep Miquel Jornet; Stefano Longhi; Natalia M. Litchinitser; Liang Feng
	2020-05-15
发表期刊	Science
出版年	2020
英文摘要	Light has several degrees of freedom (wavelength, polarization, pulse length, and so on) that can be used to encode information. A light beam or pulse can also be structured to have the property of orbital angular momentum, becoming a vortex. Because the winding number of the vortex can be arbitrary, the channel capacity can be expanded considerably. Zhang et al. and Ji et al. developed nanophotonic-based methods for generating and electrically detecting light with arbitrary orbital angular momentum, a goal that has remained an outstanding challenge so far (see the Perspective by Ge). The nanophotonic platform provides a route for developing high-capacity optical chips. Science , this issue p. [760][1], p. [763][2]; see also p. [707][3] The orbital angular momentum (OAM) intrinsically carried by vortex light beams holds a promise for multidimensional high-capacity data multiplexing, meeting the ever-increasing demands for information. Development of a dynamically tunable OAM light source is a critical step in the realization of OAM modulation and multiplexing. By harnessing the properties of total momentum conservation, spin-orbit interaction, and optical non-Hermitian symmetry breaking, we demonstrate an OAM-tunable vortex microlaser, providing chiral light states of variable topological charges at a single telecommunication wavelength. The scheme of the non–Hermitian-controlled chiral light emission at room temperature can be further scaled up for simultaneous multivortex emissions in a flexible manner. Our work provides a route for the development of the next generation of multidimensional OAM-spin-wavelength division multiplexing technology. [1]: /lookup/doi/10.1126/science.aba8996 [2]: /lookup/doi/10.1126/science.aba9192 [3]: /lookup/doi/10.1126/science.abb8091
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/267719
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Zhifeng Zhang,Xingdu Qiao,Bikashkali Midya,et al. Tunable topological charge vortex microlaser[J]. Science,2020.
APA	Zhifeng Zhang.,Xingdu Qiao.,Bikashkali Midya.,Kevin Liu.,Jingbo Sun.,...&Liang Feng.(2020).Tunable topological charge vortex microlaser.Science.
MLA	Zhifeng Zhang,et al."Tunable topological charge vortex microlaser".Science (2020).