Waveguide integrated metasurfaces for on-chip vortex beam generation
Waveguide integrated metasurfaces for on-chip vortex beam generation
Optical orbital angular momentum (OAM) is a property of light that describes the rotation of its electromagnetic field as it travels through space. Light with OAM, also known as a vortex beam, exhibits a helical phase front and often a doughnut-shaped intensity distribution. Based on these properties, OAM has garnered much attention in areas such as optical sensing, optical communication, optical tweezers, quantum information processing, and imaging. On the other hand, metasurfaces, which are ultrathin layers of judiciously designed nanostructures, possess impressive light manipulation capabilities. This thesis of mine presents two methods of using metasurfaces to generate optical vortex beams, one based on phase gradient manipulation and the other based on amplitude gradient manipulation.
University of Southampton
Huang, Jianzhi
98c98942-2532-4360-8885-014d6f694b94
October 2024
Huang, Jianzhi
98c98942-2532-4360-8885-014d6f694b94
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Chong, Harold
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
Pi, Hailong
e275259b-31f8-430c-89d5-0d029740d60e
Huang, Jianzhi
(2024)
Waveguide integrated metasurfaces for on-chip vortex beam generation.
University of Southampton, Doctoral Thesis, 116pp.
Record type:
Thesis
(Doctoral)
Abstract
Optical orbital angular momentum (OAM) is a property of light that describes the rotation of its electromagnetic field as it travels through space. Light with OAM, also known as a vortex beam, exhibits a helical phase front and often a doughnut-shaped intensity distribution. Based on these properties, OAM has garnered much attention in areas such as optical sensing, optical communication, optical tweezers, quantum information processing, and imaging. On the other hand, metasurfaces, which are ultrathin layers of judiciously designed nanostructures, possess impressive light manipulation capabilities. This thesis of mine presents two methods of using metasurfaces to generate optical vortex beams, one based on phase gradient manipulation and the other based on amplitude gradient manipulation.
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Published date: October 2024
Identifiers
Local EPrints ID: 494645
URI: http://eprints.soton.ac.uk/id/eprint/494645
PURE UUID: 0991f0de-b450-4a7c-8500-074363897012
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Date deposited: 11 Oct 2024 16:57
Last modified: 12 Nov 2024 02:48
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Contributors
Author:
Jianzhi Huang
Thesis advisor:
Xu Fang
Thesis advisor:
Harold Chong
Thesis advisor:
Hailong Pi
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