Absorption of a circularly polarized light beam

Mathematics. Physics. Mechanics


Khrapko R. I.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: khrapko_ri@hotmail.com


Absorption of a circularly polarized light beam without an azimuth phase structure in a dielectric is considered. We calculate transferring of angular momentum and energy to the dielectric. Our result differs from the result of Loudon [1] (Phys. Rev. A68, 013806). It is found that the torque acting on the dielectric divides into surface and bulk parts in another way and is twice as much as in the paper [1]. To explain the difference a concept of classical spin is used. Absence of the concept in the modern electrodynamics is discussed.


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