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arXiv · 2012.02449

Discrete spectrum Radiation from a charged particle moving in a medium with Maxwell fish eye refraction index profile

Zhyrair Gevorkian·Mher Davtyan
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Abstract

Radiation from a charged particle moving in a medium with Maxwell fish eye refraction index profile is considered. It is shown that the radiation spectrum has a discrete character. The main emitted wavelength is proportional to the refractive profiles radius and has a dipole character in a regular medium. Cherenkov like threshold velocity is established. A cardinal rearrangement of angular distribution in a lossless medium is predicted. This behavior is caused by the total internal reflection in a lossless medium as opposed to photons attenuated total reflection in the regular medium. Lossless medium ensures that both directed and monochromatic emission can serve as a light source in the corresponding regions.

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Zhyrair Gevorkian, Mher Davtyan. 2020-12-04. Discrete spectrum Radiation from a charged particle moving in a medium with Maxwell fish eye refraction index profile. https://doi.org/10.1103/physreva.102.063504

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