Results 31 to 40 of about 7,840 (209)

Experimental evidence of guided resonances in photonic crystals with aperiodically-ordered supercells [PDF]

, 2010
We report on the first experimental evidence of guided resonances (GRs) in photonic crystal slabs based on aperiodically-ordered supercells. Using the Ammann-Beenker (quasiperiodic, 8-fold symmetric) tiling geometry, we present our study on the ...
Andrea Cusano, Armando Ricciardi, Beggs, Crozier, Fan, Gallina, Gallina, Ilaria Gallina, Kilic, Liam O’ Faolain, Lousse, Marco Pisco, Pisco, Prasad, Ricciardi, Rosenberg, Stefania Campopiano, Suh, Suh, Thomas F. Krauss, Vincenzo Galdi, Wang   +21 more
core   +2 more sources

All-polymer photonic crystal slab sensor

Optics Express, 2015
An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 × 10(-6) RIU when measured in conjunction with a spectrometer of 12 pm/pixel ...
Pétur G. Hermannsson, Kristian T. Sørensen, Christoph Vannahme, Cameron L.C. Smith, Jan J. Klein, Maria-Melanie Russew, Gabi Grützner, Ander   +7 more
openaire   +3 more sources

Complete 2π  phase control by photonic crystal slabs

Optics Express, 2021
Photonic crystal slabs are the state of the art in the studies of the light confinement, optical wave modulating and guiding, as well as nonlinear optical response. Previous studies have shown abundant real-world implementations of photonic crystals in planar optics, metamaterials, sensors, and lasers.
Mingsen Pan, Zhonghe Liu, Akhil Raj Kumar Kalapala, Yudong Chen, Yuze Sun, Weidong Zhou   +5 more
openaire   +2 more sources

1D photonic crystal filled with low-temperature plasma for controlling broadband microwave transmission

AIP Advances, 2019
A 1D plasma photonic crystal (PPC) is filled with plasmas and slab dielectrics in a large volume cylindrical glow discharge device. The parameters of the PPC are designed to meet the transmission condition of broadband microwave (1.5GHz-12GHz) according ...
Jingfeng Yao, Chengxun Yuan, Hui Li, Jian Wu, Ying Wang, Anatoly A. Kudryavtsev, Vladimir I. Demidov, Zhongxiang Zhou   +7 more
doaj   +1 more source

Polarization mixing, bound states in a continuum, and exciton-polaritons in photonic crystal slabs by a guided-mode expansion approach [PDF]

EPJ Web of Conferences
Photonic crystal (PhC) slabs, or patterned multilayer waveguides, are known to support truly guided modes with no losses, as well as quasi-guided modes that lie in the continuum of far-field radiation.
Zanotti Simone, Minkov Momchil, Nigro Davide, Gerace Dario, Fan Shanhui, Andreani Lucio Claudio   +5 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
core   +3 more sources

Reconfigurable microfluidic photonic crystal slab cavities

Optics Express, 2008
We demonstrate the spectral and spatial reconfigurability of photonic crystal double-heterostructure cavities in silicon by microfluidic infiltration of selected air holes. The lengths of the microfluidic cavities are changed by adjusting the region of infiltrated holes in steps of several microns.
Cameron L, Smith, Uwe, Bog, Snjezana, Tomljenovic-Hanic, Michael W, Lee, Darran K C, Wu, Liam, O'Faolain, Christelle, Monat, Christian, Grillet, Thomas F, Krauss, Christian, Karnutsch, Ross C, McPhedran, Benjamin J, Eggleton   +11 more
openaire   +2 more sources

Automated optimization of photonic crystal slab cavities [PDF]

Scientific Reports, 2014
Thanks to their high quality factor, combined to the smallest modal volume, defect-cavities in photonic crystal slabs represent a promising, versatile tool for fundamental studies and applications in photonics. In paricular, the L3, H0, and H1 defects are the most popular and widespread cavity designs, due to their compactness, simplicity, and small ...
Minkov Momchil, Savona Vincenzo
openaire   +3 more sources

Effects of hydrostatic pressure on an L1 and L3 cavity of a photonic slab

Materials Research Express, 2020
In this work, we used the guided-mode expansion method to calculate the photonic band dispersion in two-dimensional photonic crystal slabs. The photonic lattice is hexagonal, composed of air holes with a circular cross-section.
Francis Segovia-Chaves, Herbert Vinck-Posada   +1 more
doaj   +1 more source

Magic configurations in moiré superlattice of bilayer photonic crystals: Almost-perfect flatbands and unconventional localization

Physical Review Research, 2022
We investigate the physics of photonic band structures of the moiré patterns that emerged when overlapping two unidimensional photonic crystal slabs with mismatched periods. The band structure of our system is a result of the interplay between intralayer
Dung Xuan Nguyen, Xavier Letartre, Emmanuel Drouard, Pierre Viktorovitch, H. Chau Nguyen, Hai Son Nguyen   +5 more
doaj   +1 more source