James H. Crichton & Philip L. Marston
Abstract:
We show how the angular momentum of electromagnetic radiation may be
decomposed into spin and orbital parts, of which the spin part is
measurable in terms of Stokes parameters, thereby providing an
unambiguous, gauge-invariant, distinction between the two parts.
Published July 12, 2000.
Mathematics Subject Classifications: 78A40, 78A46, 78A45, 81U40.
Key words: Electromagnetic Radiation, Scattering, Angular Momenta.
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James H. Crichton Department of Physics Seattle Pacific University Seattle, Washington 98119 Deceased. |
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Philip L. Marston Department of Physics Washington State University Pullman, Washington 99164 e-mail: marston@wsu.edu James Crichton (L) and Philip Marston (R) in the Cascade range, circa 1970. |