High-Q Defect-Free 2D Photonic Crystal Cavity from Random Localised Disorder
Crystals, 2014 We propose a high-Q photonic crystal cavity formed by introducing random disorder to the central region of an otherwise defect-free photonic crystal slab (PhC).
Kelvin Chung +4 more
doaj +1 more source
Tunable optical properties of silicon-on-insulator photonic crystal slab structures [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 A photonic crystal slab structure with one-dimensional periodicity, obtained by preferential etching of a silicon-on-insulator wafer, is numerically investigated in 3-D.
Tasolamprou A. C. +4 more
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From vertical-cavities to hybrid metal/photonic-crystal nanocavities: towards high-efficiency nanolasers [PDF]
, 2012 We provide a numerical study showing that a bottom reflector is indispensable to achieve unidirectional emission from a photonic-crystal (PhC) nanolaser.
Huang, Jingqing +2 more
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Cherenkov Emission Generated by a Modulated Source in 2D Dispersive Photonic Crystal Slabs
Advances in Materials Science and Engineering, 2020 This work presents a systematic numerical study of Cherenkov optical radiation generated by a modulated source that moves with uniform velocity on a two-dimensional (2D) photonic crystal (PCr) slab surface.
Erika Martínez-Sánchez +4 more
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Design of Optomechanical Cavities and Waveguides on a Simultaneous Bandgap Phononic-Photonic Crystal Slab [PDF]
, 2010 In this paper we study and design quasi-2D optomechanical crystals, waveguides, and resonant cavities formed from patterned slabs. Two-dimensional periodicity allows for in-plane pseudo-bandgaps in frequency where resonant optical and mechanical ...
Amir H. Safavi-Naeini +46 more
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Deeply subwavelength phonon-polaritonic crystal made of a van der Waals material
Nature Communications, 2019 Photonic crystals can steer, shape, and sculpture the flow of photons. Here, the author fabricate a deep-subwavelength photonic crystal slab that supports ultra-confined phonon polaritons, by patterning a nanoscale hole array in h-BN.
F. J. Alfaro-Mozaz +9 more
doaj +1 more source
Design of waveguides, bends and splitters in photonic crystal slabs with hexagonal holes in a triangular lattice [PDF]
, 2005 Waveguides in photonic crystal slabs (PCS) can be obtained by omitting a row of holes (W1-waveguides). In general the propagation properties in such waveguides suffer from the unavoidable periodic sidewall corrugation caused by the remaining parts of the
Bostan, Cazimir G., Ridder, René M. de
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Two-dimensionally confined topological edge states in photonic crystals
New Journal of Physics, 2016 We present an all-dielectric photonic crystal structure that supports two-dimensionally confined helical topological edge states. The topological properties of the system are controlled by the crystal parameters.
Sabyasachi Barik +4 more
doaj +1 more source
High coupling efficiency to a low dispersion slow light-supporting photonic crystal waveguide [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In this paper, we design a waveguide on photonic crystal slab for propagation of low-dispersion slow light. By shifting the air holes adjacent to the waveguide, we obtain a photonic crystal waveguide with a group index of 25 in 25 nm bandwidth which ...
Moghaddam M. Khatibi +2 more
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Formation Mechanism of Guided Resonances and Bound States in the Continuum in Photonic Crystal Slabs [PDF]
, 2016 We develop a formalism, based on the mode expansion method, to describe the guided resonances and bound states in the continuum (BICs) in photonic crystal slabs with one-dimensional periodicity.
Chen, Hongsheng +6 more
core +2 more sources