TITLE

Microwave radiation force and torque on a disk resonator excited by a circularly polarized plane wave

AUTHOR(S)
Makarov, S.; Kulkarni, S.
PUB. DATE
May 2004
SOURCE
Applied Physics Letters;5/10/2004, Vol. 84 Issue 19, p3795
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A numerical simulation method [S. Makarov and S. Kulkami, Appl. Phys. Lett. 84, 1600 (2004)] is used in order to determine the radiation force and radiation torque on a parallel-plate disk resonator, whose size is comparable to wavelength. The method is based on the MOM solution of the electric-field integral equation, accurate calculation of the near field, and removal of the self-interaction terms responsible for the pinch effect. The local force/torque distribution at the normal incidence of a circularly polarized plane wave is found. It is observed that, at the resonance, the individual disks are subject to unexpectedly large local force densities, despite the fact that the net radiation force on the resonator remains very small. On the other hand, the total axial torque on the disk resonator also increases at the resonance.
ACCESSION #
13029158

 

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