Single-mode interface states in heterostructure waveguides with Bragg and non-Bragg gaps
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep44381
Abstract: Interface states can always arise in heterostructures that consist of two or more (artificial) materials with topologically different energy bands. The gapped band structure can be classified by the Chern number (a topological invariant) generally… read more here.
Keywords: interface states; mode; non bragg; bragg gaps ... See more keywords
Femtosecond laser inscription of waveguides and Bragg gratings in transparent cyclic olefin copolymers.
Sign Up to like & getrecommendations! Published in 2020 at "Optics express"
DOI: 10.1364/oe.388364
Abstract: We report on a femtosecond laser based fabrication technique that enables simultaneous single-step generation of optical waveguides and Bragg gratings inside bulk cyclic olefin copolymers. Due to the nonlinear absorption of focused and spatially modulated… read more here.
Keywords: bragg gratings; femtosecond laser; olefin copolymers; cyclic olefin ... See more keywords