T-typed photonic crystal circulator with square lattice Al2O3 rods array and NiZn-ferrite posts
This paper proposes and validates a novel T-typed magneto-photonic crystals circulator consisting of Al2O3 ceramic rods array and ferrite posts. Based on the numerical simulations on the band gap of photonic crystals and the function of the circulator ...
Yong Wang +5 more
doaj +1 more source
Hybrid topological photonic crystals
Topologically protected photonic edge states offer unprecedented robust propagation of photons that are promising for waveguiding, lasing, and quantum information processing.
Yanan Wang +11 more
doaj +1 more source
Microwave Applications of Photonic Band Gap Structures [PDF]
We have investigated two major applications of photonic band gap materials. We demonstrated the guiding and bending of electromagnetic waves through planar waveguides built around layer-by-layer photonic crystals. We then investigated the radiation properties of an antenna that was formed by a hybrid combination of a monopole radiation source and a ...
Temelkuran, Burak +6 more
openaire +2 more sources
Ultrafast optical switching of three-dimensional Si inverse opal photonic band gap crystals [PDF]
We present ultrafast optical switching experiments on 3D photonic band gap crystals. Switching the Si inverse opal is achieved by optically exciting free carriers by a two-photon process. We probe reflectivity in the frequency range of second order Bragg
Albert Polman +8 more
core +3 more sources
Simulation of simultaneous photonic and phononic band gaps in Sapphire
The simultaneous existence of photonic and phononic band gaps in a simple square periodic array of holes drilled in sapphire substrate is investigated theoretically.
Bentarki H., Tlidi M., Makhoute A.
doaj +1 more source
Spectral transformations in the regime of pulse self-trapping in a nonlinear photonic crystal
We consider interaction of a femtosecond light pulse with a one-dimensional photonic crystal with relaxing cubic nonlinearity in the regime of self-trapping.
Novitsky, Denis
core +1 more source
Direct experimental visualization of waves and band structure in 2D photonic crystal slabs
We demonstrate for the first time the ability to perform time resolved imaging of terahertz (THz) waves propagating within a photonic crystal (PhC) slab.
Benjamin K Ofori-Okai +4 more
doaj +1 more source
Photonic band structure in a one-dimensional distributed Bragg reflector pillar
This paper aims to calculate the photonic band structure in a distributed Bragg reflector pillar. The one-dimensional periodic photonic pillar consists of alternating layers of GaAs and air.
Francis Segovia-Chaves +2 more
doaj +1 more source
Fast widely tunable chiral nematic liquid crystal filter [PDF]
Chiral nematic liquid crystals (CLCs) can spontaneously arrange into helical structures with periodicities of a few hundred nanometers with a certain pitch (P) and corresponding periodic refractive index profile.
Beeckman, Jeroen +2 more
core
Qualitative aspects of the entanglement in the three-level model with photonic crystals
This communication is an enquiry into the circumstances under which concurrence and phase entropy methods can give an answer to the question of quantum entanglement in the composite state when the photonic band gap is exhibited by the presence of ...
A. Kamli +17 more
core +1 more source

