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The Angular Momentum Of Light: Optical Spanners And The Rotational Frequency Shift

Padgett, M., and Allen, L. (1999) The Angular Momentum Of Light: Optical Spanners And The Rotational Frequency Shift. Optical and Quantum Electronics, 31 (1). pp. 1-12. ISSN 0306-8919 (doi:10.1023/A:1006911428303)

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Abstract

An introduction is given to the concepts of the spin and orbital angular momentum of light beams. Both spin and orbital angular momentum can be transferred from a light beam to particles held within optical tweezers, so forming an optical spanner. Each also give rise to a frequency shift when the light beam is rotated. This arises because quarter or half-wave plates and pi/2 or pi mode converters play equivalent roles for spin and orbital angular momentum respectively.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Padgett, Prof Miles
Authors: Padgett, M., and Allen, L.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optical and Quantum Electronics
Journal Abbr.:Opt. Quantum Electron.
ISSN:0306-8919

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