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Digitally tailoring arbitrary structured light of generalized ray-wave duality

Digitally tailoring arbitrary structured light of generalized ray-wave duality
Digitally tailoring arbitrary structured light of generalized ray-wave duality

Structured lights, particularly those with tunable and controllable geometries, are highly topical due to a myriad of their applications from imaging to communications. Ray-wave duality (RWD) is an exotic physical effect in structured light that the behavior of light can be described by both the geometric ray-like trajectory and a coherent wave-packet, thus providing versatile degrees of freedom (DoFs) to tailor more general structures. However, the generation of RWD geometric modes requires a solid-state laser cavity with strict mechanical control to fulfill the ray oscillation condition, which limits the flexiblility of applications. Here we overcome this confinement to generate on-demand RWD geometric modes by digital holographic method in free space without a cavity. We put forward a theory of generalized ray-wave duality, describing all previous geometric modes as well as new classes of RWD geometric modes that cannot be generated from laser cavities, which are verified by our free-of-cavity creation method. Our work not only breaks the conventional cavity limit on RWD but also enriches the family of geometric modes. More importantly, it offers a new way of digitally tailoring RWD geometric modes on-demand, replacing the prior mechanical control, and opening up new possibilities for applications of ray-wave structured light.

1094-4087
31043-31056
Wan, Zhensong
becbd162-65a9-4191-920c-ee958a64c0c7
Wang, Zhaoyang
90bcc7c2-e3c5-4881-9be1-3d2e13271e14
Yang, Xilin
14ec7a02-ee13-4c83-940f-1eaf95b0f996
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Fu, Xing
b93bc44e-4b8c-4e94-9b40-ad53938c59d6
Wan, Zhensong
becbd162-65a9-4191-920c-ee958a64c0c7
Wang, Zhaoyang
90bcc7c2-e3c5-4881-9be1-3d2e13271e14
Yang, Xilin
14ec7a02-ee13-4c83-940f-1eaf95b0f996
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Fu, Xing
b93bc44e-4b8c-4e94-9b40-ad53938c59d6

Wan, Zhensong, Wang, Zhaoyang, Yang, Xilin, Shen, Yijie and Fu, Xing (2020) Digitally tailoring arbitrary structured light of generalized ray-wave duality. Optics Express, 28 (21), 31043-31056. (doi:10.1364/OE.400587).

Record type: Article

Abstract

Structured lights, particularly those with tunable and controllable geometries, are highly topical due to a myriad of their applications from imaging to communications. Ray-wave duality (RWD) is an exotic physical effect in structured light that the behavior of light can be described by both the geometric ray-like trajectory and a coherent wave-packet, thus providing versatile degrees of freedom (DoFs) to tailor more general structures. However, the generation of RWD geometric modes requires a solid-state laser cavity with strict mechanical control to fulfill the ray oscillation condition, which limits the flexiblility of applications. Here we overcome this confinement to generate on-demand RWD geometric modes by digital holographic method in free space without a cavity. We put forward a theory of generalized ray-wave duality, describing all previous geometric modes as well as new classes of RWD geometric modes that cannot be generated from laser cavities, which are verified by our free-of-cavity creation method. Our work not only breaks the conventional cavity limit on RWD but also enriches the family of geometric modes. More importantly, it offers a new way of digitally tailoring RWD geometric modes on-demand, replacing the prior mechanical control, and opening up new possibilities for applications of ray-wave structured light.

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Digitally tailoring arbitary structured lights of generalised ray-wave duality_Shen-2020-OPE (1) - Accepted Manuscript
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More information

Accepted/In Press date: 20 September 2020
e-pub ahead of print date: 2 October 2020
Published date: 12 October 2020

Identifiers

Local EPrints ID: 446140
URI: http://eprints.soton.ac.uk/id/eprint/446140
ISSN: 1094-4087
PURE UUID: 355cbe6a-0874-4cdb-b57a-b973475e3772

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Date deposited: 21 Jan 2021 17:35
Last modified: 14 Sep 2021 19:47

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