Enhanced Tuneable Rotatory Power in a Rotating Plasma

Abstract

The gyrotropic properties of a rotating magnetized plasma are derived analytically. Mechanical rotation leads to a new cutoff for wave propagation along the magnetic field and polarization rotation above this cutoff is the sum of the classical magneto-optical Faraday effect and the mechanico-optical polarization drag. Exploiting the very large effective group index near the cutoff, we expose here, for the first time, that polarization drag can be $10^4$ larger than Faraday rotation at GHz frequency. The rotation leads to weak absorption while allowing direct frequency control, demonstrating the unique potential of rotating plasmas for non-reciprocal elements. The very large rotation frequency of a dense non-neutral plasma could enable unprecedented gyrotropy in the THz regime.

6 pages, 3 figures, to be published in Phys. Rev. E

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• What is Nonreciprocity?
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Cited by in corpus (10)

• Wave propagation in rotating magnetised plasmas
• Cold plasma waves in the chiral Maxwell-Carroll-Field-Jackiw electrodynamics
• Quasilinear theory of Brillouin resonances in rotating magnetized plasmas
• Anisotropic cold plasma modes in chiral vector Maxwell-Carroll-Field-Jackiw electrodynamics
• Rotatory power reversal induced by magnetic-current in bi-isotropic media
• Optical reflection signature of an axion dielectric with magnetic current
• Hypothesis of a bi-isotropic-like plasma permeating the interstellar space
• Optical effects in unmagnetized cold plasmas by a chiral axion factor
• Faraday-Fresnel rotation and splitting of orbital angular momentum carrying waves in a rotating plasma
• Rotating Alfvén waves in rotating plasmas