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Forbes, Kayn 
ORCID: https://orcid.org/0000-0002-8884-3496 and Green, Dale ORCID: https://orcid.org/0000-0002-2549-0486
(2024)
Topological dichroism and birefringence of twisted light.
In:
Nanophotonics X.
Proceedings of SPIE - The International Society for Optical Engineering, 12991
.
SPIE, pp. 51-59.
ISBN 9781510673007
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Abstract
Material anisotropy produces differential absorption and birefringence of linearly polarized light; material chirality leads to differential absorption and birefringence of circularly polarized light. Here we highlight how anisotropic media can produce a differential absorption and birefringence which depends on the sign of the topological charge ℓ of a focused optical vortex beam. Manifesting purely through electric-dipole interactions and proportional to the paraxial parameter to first-order, these topological-charge-dependent light-matter interactions are significantly larger than current ℓ-dependent effects which require material chirality and extremely focused light. The interactions described within represent a novel method for probing the local structure of advanced materials and nanoscale light.
| Item Type: | Book Section |
|---|---|
| Uncontrolled Keywords: | structured light,anisotropic,birefringence,dichroism,light-matter interactions,optical angular momentum,polarization,topological charge,electronic, optical and magnetic materials,condensed matter physics,computer science applications,applied mathematics,electrical and electronic engineering ,/dk/atira/pure/subjectarea/asjc/2500/2504 |
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) Faculty of Science > School of Physics (former - to 2024) |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 02 Aug 2024 10:30 |
| Last Modified: | 12 Aug 2024 11:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/96109 |
| DOI: | 10.1117/12.3017857 |
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