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9 papers · 2 filters
All-dielectric metasurfaces with trapped modes: group-theoretical description
Pengchao Yu, Anton S. Kupriianov, Victor Dmitriev +1
An all-dielectric metasurface featuring resonant conditions of the trapped mode excitation is considered. It is composed of a lattice of subwavelength particles which are made of a…
Fast fabrication of optical vortex generators by femtosecond laser ablation
Jian-Guan Hua, Zhen-Nan Tian, Si-Jia Xu +2
Fast fabrication of micro-optical elements for generation of optical vortex beams based on the q-plate design is demonstrated by femtosecond (fs) laser ablation of gold film on gla…
Controlling high-Q trapped modes in polarization-insensitive all-dielectric metasurfaces
Andrey Sayanskiy, Anton S. Kupriianov, Su Xu +4
We reveal peculiarities of the trapped (dark) mode excitation in a polarization-insensitive all-dielectric metasurface, whose unit super-cell is constructed by particularly arrangi…
Mutual transitions between stationary and moving dissipative solitons
Bogdan Kochetov
Application of stable localized dissipative solitons as basic carriers of information promises the significant progress in the development of new optical communication networks. Th…
Dynamically encircling an exceptional point in anti-PT-symmetric systems: asymmetric mode switching for symmetry-broken states
Xu-Lin Zhang, Tianshu Jiang, Hong-Bo Sun +1
Dynamically encircling an exceptional point (EP) in parity-time (PT) symmetric systems shows an interesting chiral dynamics, leading to asymmetric mode switching in which the outpu…
Multiple invisibility regions induced by symmetry breaking in a trimer of subwavelength graphene-coated nanowires
Volodymyr I. Fesenko, Vitalii I. Shcherbinin, Vladimir R. Tuz
Electromagnetic response is studied for clusters of subwavelength graphene-coated nanowires illuminated by a linearly polarized plane wave in the terahertz frequency range. The sol…