Orbital angular momentum, optical spanners, and rotational frequency shift

Miles J. Padgett

doi:10.1117/12.385396

12 May 2000 Orbital angular momentum, optical spanners, and rotational frequency shift

Miles J. Padgett

Proceedings Volume 3930, Laser Resonators III; (2000) https://doi.org/10.1117/12.385396
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

Light possesses both spin and orbital angular momentum. Whereas the spin component arises from the spin of individual photons and is associated with circular polarization, the orbital component arises from the azimuthal component of the Poynting vector and is associated with helical wavefronts. This paper considers the generation of beams with orbital angular momentum, their interaction with mater, behavior in nonlinear media and frequency shifts arising from their rotation. In each case the properties of beams containing orbital and/or spin angular momentum is compared and explained.

Citation Download Citation

Miles J. Padgett "Orbital angular momentum, optical spanners, and rotational frequency shift", Proc. SPIE 3930, Laser Resonators III, (12 May 2000); https://doi.org/10.1117/12.385396

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