High‐Q Nanophotonics over the Full Visible Spectrum Enabled by Hexagonal Boron Nitride Metasurfaces
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202209688
Abstract: All‐dielectric optical metasurfaces with high quality (Q) factors have been hampered by the lack of simultaneously lossless and high‐refractive‐index materials over the full visible spectrum. In fact, the use of low‐refractive‐index materials is unavoidable for… read more here.
Keywords: index; visible spectrum; refractive index; metasurfaces high ... See more keywords
Spatio-temporal instability in negative index materials
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DOI: 10.1016/j.ijleo.2019.05.062
Abstract: Abstract In this paper, we investigate spatiotemporal instability in negative index materials (NIMs) made of split ring resonators and arrays of wires embedded in a Kerr medium. The pulse propagation in NIM is modeled by… read more here.
Keywords: instability; index materials; instability negative; spatio temporal ... See more keywords
Optical solitons in nonlinear negative-index materials with quadratic-cubic nonlinearity
Sign Up to like & getrecommendations! Published in 2017 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2017.05.016
Abstract: Abstract This paper obtains bright and singular optical soliton solutions in nonlinear negative-index materials that appears with quadratic-cubic nonlinearity. The applied integration algorithm is the extended trial equation. Additional waves such as plane waves, periodic… read more here.
Keywords: quadratic cubic; negative index; index materials; cubic nonlinearity ... See more keywords
Colossal magnetic fields in high refractive index materials at microwave frequencies
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DOI: 10.1038/s41598-021-01644-1
Abstract: Resonant scattering of electromagnetic waves is a widely studied phenomenon with a vast range of applications that span completely different fields, from astronomy or meteorology to spectroscopy and optical circuitry. Despite being subject of intensive… read more here.
Keywords: magnetic fields; refractive index; index materials; high refractive ... See more keywords
Non-Hermitian guided modes and exceptional points using loss-free negative-index materials.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.487278
Abstract: We analyze the guided modes in coupled waveguides made of negative-index materials without gain or loss. We show that it supports non-Hermitian phenomenon on the existence of guided mode versus geometric parameters of the structure.… read more here.
Keywords: non hermitian; loss; negative index; guided modes ... See more keywords