Work

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

Year: 2018

Type: article

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.

Source: Optics Letters

DOI: 10.1364/ol.43.003073

Authors: G. Musarra, K. E. Wilson, D. Faccio, E. M. Wright

Institutions: University of Glasgow, Heriot-Watt University

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: Engineering and Physical Sciences Research Council

Awards: Black Hole Superradiance in Rotating Fluids (SURF), G4160196625, Black Hole Superradiance in Rotating Fluids (SURF)