Calculating spatiotemporally modulated surfaces: A dynamical differential formalism
نویسندگان
چکیده
Electromagnetic waves in a system with space and time dependent boundary experience both diffraction Doppler-like frequency conversion. In order to analyse such situations, conventional methods call for either the eigenmodes or dyadic Green's function media. Here, we propose dynamical differential method which does not require of them. Our utilises coordinate transformation simplify calculation optical response system. We reveal that symmetry is broken presence traveling-wave type spatiotemporal modulation.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.104.013509