Focusing the optical radiation emitted by systems based on photonic crystals

Vetluzhskiy, A.Y.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Ветлужский А.Ю. Фокусировка оптического излучения системами на основе фотонных кристаллов // Оптический журнал. 2021. Т. 88. № 8. С. 32–39. http://doi.org/10.17586/1023-5086-2021-88-08-32-39

Vetluzhskiy A.Yu. Focusing the optical radiation emitted by systems based on photonic crystals [in Russian] // Opticheskii Zhurnal. 2021. V. 88. № 8. P. 32–39. http://doi.org/10.17586/1023-5086-2021-88-08-32-39

For citation (Journal of Optical Technology):

A. Yu. Vetluzhskiĭ, "Focusing the optical radiation emitted by systems based on photonic crystals," Journal of Optical Technology. 88(8), 429-434 (2021). https://doi.org/10.1364/JOT.88.000429

Abstract:

Methods for focusing electromagnetic radiation using two-dimensional photonic crystals are discussed. The main feature of the described methods is the use of structures of finite dimensions, which determine the feasibility and efficiency of focusing. In this case, the physical mechanisms underlying the considered methods of localizing the field in a limited region of space are significantly different. These mechanisms include the unusual reflection and refraction properties of metallic photonic crystals, which exhibit the properties of media with ultralow values of the refractive index at the frequencies of the first allowed zone, and diffraction effects at the edges of dielectric photonic crystal structures.

Keywords:

focusing, diffraction, photonic crystals, refractive index, collimators

Acknowledgements:

The research was supported by the Ministry of science and higher education of RF (grant No. 075-15-2020-787).

OCIS codes: 050.5298; 050.1965

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