Padgett, M. (2000) Orbital angular momentum, optical spanners, and rotational frequency shift. Proceedings of the SPIE: The International Society for Optical Engineering, 3930 . 130 -143. ISSN 0277-786X (doi:10.1117/12.385396)
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Publisher's URL: http://dx.doi.org/10.1117/12.385396
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. The paper considers the generation of beams with orbital angular momentum, their interaction with matter, 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.
|Additional Information:||Presented at the SPIE Laser Resonators III Conference, 26 January, 2000, San Jose, CA, USA|
|Glasgow Author(s):||Padgett, Prof Miles|
|Subjects:||Q Science > QC Physics|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Proceedings of the SPIE: The International Society for Optical Engineering|
|Publisher:||SPIE - The International Society for Optical Engineering|