Rotation-dependent nonlinear absorption of orbital angular momentum beams in ruby

Musarra, G., Wilson, K.E., Faccio, D. and Wright, E. (2018) Rotation-dependent nonlinear absorption of orbital angular momentum beams in ruby. Optics Letters, 43(13), pp. 3073-3075. (doi:10.1364/OL.43.003073) (PMID:29957784)

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Abstract

We investigate the effect of a rotating medium on orbital angular momentum (OAM)-carrying beams by combining a weak probe beam shifted in frequency relative to a strong pump beam. We show how the rotational Doppler effect modifies the light-matter interaction through the external rotation of the medium. This interaction leads to an absorption that increases with the mechanical rotation velocity of the medium and with a rate that depends on the OAM of the light beam.

Item Type:Articles
Additional Information:Funding. Engineering and Physical Sciences Research Council (EPSRC) (EP/P006078/2)
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Musarra, Miss Gabriella and Faccio, Professor Daniele
Authors: Musarra, G., Wilson, K.E., Faccio, D., and Wright, E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Letters
Publisher:Optical Society of America
ISSN:0146-9592
ISSN (Online):1539-4794

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
3030210Black Hole Superradiance in Rotating Fluids (SURF)Daniele FaccioEngineering and Physical Sciences Research Council (EPSRC)EP/P006078/2P&S - Physics & Astronomy