Method for Probing the Orbital Angular Momentum of Optical Vortices in Electromagnetic Waves from Astronomical Objects

Details Method for Probing the Orbital Angular Momentum of Optical Vortices in Electromagnetic Waves from Astronomical Objects Method for Probing the Orbital Angular Momentum of Optical Vortices in Electromagnetic Waves from Astronomical Objects

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008phrvl.101j0801b&link_type=abstract

Physical Review Letters, vol. 101, Issue 10, id. 100801

Astronomy and Astrophysics

Astrophysics

32

Interferometers, Optical Angular Momentum And Its Quantum Aspects, Visible, Ground-Based Ultraviolet, Optical And Infrared Telescopes

Scientific paper

We present an efficient method for probing the orbital angular momentum of optical vortices of arbitrary sizes. This method, based on a multipoint interferometer, has its most important application in measuring the orbital angular momentum of light from astronomical sources, opening the way to interesting new astrophysics. We demonstrate its viability by measuring the orbital angular momentum of Laguerre-Gaussian laser beams.

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