Classical Physics


Absorption of a Circularly Polarized Beam in a Dielectric, Etc.

Authors: Radi I. Khrapko

We calculate absorption of a circularly polarized light beam without an azimuth phase structure in a dielectric in the frame of the standard electrodynamics. A transfer of energy, momentum, and angular momentum from the beam to the dielectric is calculated. The calculation shows, in particular, that the angular momentum flux in the beam equals to two power of the beam divided by frequency. This result contradicts another part of the electrodynamics, which predicts the flux equals to power of the beam divided by frequency. In addition we show that this part of the electrodynamics contradicts the classical Beth's experiment. Our inference is: the electrodynamics is incomplete. To correct the electrodynamics, we introduce a spin tensor into the electrodynamics. The corrected electrodynamics is in accordance with our calculation and with the Beth's experiment.

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Submission history

[v1] 25 Mar 2007

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