Flat metal-dielectric grating with 100% retro-diffraction efficiency: rigorous theory

0537417 - ÚFE 2022 RIV GB eng J - Článek v odborném periodiku
Honzátko, Pavel - Čtyroký, Jiří
Flat metal-dielectric grating with 100% retro-diffraction efficiency: rigorous theory.
Journal of Optics. Roč. 23, č. 1 (2021), č. článku 015601. ISSN 2040-8978. E-ISSN 2040-8986
Grant CEP: GA TA ČR(CZ) TN01000008; GA ČR(CZ) GA19-00062S
Institucionální podpora: RVO:67985882
Klíčová slova: electromagnetic theory * diffraction grating * Littrow configuration
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 2.077, rok: 2021
Způsob publikování: Open access
https://doi.org/10.1088/2040-8986/abcd01

We have recently designed a new type of a flat metal-dielectric grating which is supposed to replace blazed diffraction gratings, providing very high −1st reflected diffraction order efficiency within a broad wavelength band, high durability, and relative ease of fabrication. In this communication we present a rigorous electromagnetic theory of the grating in the approximation of infinitely thin perfect metal and show that the properly designed grating can reach 100% diffraction efficiency in the Littrow configuration for either transversal electric (TE or s) or transversal magnetic (TM or p) polarizations. Properties of the grating are analysed and discussed in detail
Trvalý link: http://hdl.handle.net/11104/0315131