Results 41 to 50 of about 7,840 (209)
Photonic Bandgap Closure and Metamaterial Behavior in 1D Periodic Chains of High-Index Nanobricks
Photonics, 2022 It has been shown that the photonic bandgap of one-dimensional (1D) dielectric periodic thin films can vanish at the first Bragg condition for TM modes.
Evelyn Díaz-Escobar +4 more
doaj +1 more source
Alignment issues in photonic crystal device fabrication [PDF]
, 2004 An important requirement in the fabrication of photonic crystal structures is the correct relative alignment of structural elements. Accuracy should be in the order of some tens of nanometres. Some of the options for providing such accuracy are discussed.
Bostan, Cazimir G. +3 more
core +4 more sources
Realization of dual-band topological states in Su–Schrieffer–Heeger-like photonic crystal slabs
Results in Physics, 2023 We design the bilayer mirror-symmetric (I-shaped) photonic crystal slabs supporting dual-band topological edge states simultaneously, which is confirmed by the topological phases and localized field distributions.
Ying Chen +4 more
doaj +1 more source
, 2005 Optical microcavities based on zero-group-velocity surface modes in photonic crystal slabs are studied. It is shown that high quality factors can be easily obtained for such microcavities in photonic crystal slabs.
Joannopoulos J. D. +3 more
core +1 more source
Band structure of honeycomb photonic crystal slabs
, 2006 Two-dimensional (2D) honeycomb photonic crystals with cylinders and connecting walls have the potential to have a large full band gap. In experiments, 2D photonic crystals do not have an infinite height, and therefore, we investigate the effects of the ...
Guo, G. Y., Weng, Tai-I
core +1 more source
Angewandte Chemie, EarlyView.High photon flux causes (re)distionpersion of atomic Pd species on TiO2 in photocatalytic experiments, whereas Pt SAs undergo continuous agglormation. This allows light‐driven stabilization of active Pd centers for sustained H2 evolution. ABSTRACT In recent years, the use of single atoms (SAs) has become increasingly significant in photocatalysis ...
Xin Zhou +6 more
wiley +2 more sources
Two-dimensional heterogeneous photonic bandedge laser
, 2004 We proposed and realized a two-dimensional (2D) photonic bandedge laser surrounded by the photonic bandgap. The heterogeneous photonic crystal structure consists of two triangular lattices of the same lattice constant with different air hole radii.
Kim, Se-Heon +4 more
core +1 more source
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
core +2 more sources
AIP Advances, 2011 A prototype of planar silicon photonic structure is designed and simulated to provide narrow resonant line-width (∼2 nm) in a wide photonic band gap (∼210 nm) with broad tunable resonant wavelength range (∼100 nm) around the optical communication ...
Guanquan Liang +2 more
doaj +1 more source
Highly Reproducible, Bio‐Based Slab Photonic Crystals Grown by Diatoms
Advanced Science, 2020 Slab photonic crystals (PhCs) are photonic structures used in many modern optical technologies. Fabrication of these components is costly and usually involves eco‐unfriendly methods, requiring modern nanofabrication techniques and cleanroom facilities ...
Johannes W. Goessling +2 more
doaj +1 more source