Results 41 to 50 of about 14,612 (217)
Reflectance measurement of two-dimensional photonic crystal nanocavities with embedded quantum dots [PDF]
, 2010 The spectra of two-dimensional photonic crystal slab nanocavities with embedded InAs quantum dots are measured by photoluminescence and reflectance.
M. Fujita +6 more
core +2 more sources
Design and analysis of a 2D photonic crystal based parallelogram-shaped cavity with open corners for optical switching [PDF]
EPJ Web of ConferencesIn this paper, we designed a 2×2 optical switch using a two- dimensional photonic crystal (2D PC) based on interference principle. For the first time, an air-hole slab-structure-based photonic switch is proposed.
Sreevani N.R.G. +2 more
doaj +1 more source
Sensitivity enhancement in photonic crystal slab biosensors
Optics Express, 2010 Refractive index sensitivity of guided resonances in photonic crystal slabs is analyzed. We show that modal properties of guided resonances strongly affect spectral sensitivity and quality factors, resulting in substantial enhancement of refractive index sensitivity.
Mohamed, El Beheiry +3 more
openaire +2 more sources
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 +7 more
doaj +1 more source
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 +11 more
openaire +2 more sources
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
Efficient Analysis of Photonic Crystal Slabs [PDF]
Journal of Lasers, Optics & Photonics, 2014 In this paper we propose an accelerated plane wave expansion method (PWEM) for calculation of slab photonic crystal (slab PC) modes. In this method instead of creating artificial periodicity in the direction of slab normal and solving the problem as a full 3D one, which is done in standard PWEM, we consider constant coefficients in 2D PWEM as functions
Mohammad Hasan Aram, Sina Khorasani
openaire +1 more source
Theory of intrinsic propagation losses in topological edge states of planar photonic crystals
Physical Review Research, 2020 Using a semianalytic guided-mode expansion technique, we present theory and analysis of intrinsic propagation losses for topological photonic crystal slab waveguide structures with modified honeycomb lattices of circular or triangular holes.
Erik Sauer +2 more
doaj +1 more source
Vertical beaming of wavelength-scale photonic crystal resonators
, 2006 We report that $> 80%$ of the photons generated inside a photonic crystal slab resonator can be funneled within a small divergence angle of $\pm 30^\circ$. The far-field radiation properties of a photonic crystal slab resonant mode are modified by tuning
A. Taflove +12 more
core +1 more source
Efficient excitation of self-collimated beams and single Bloch modes in planar photonic crystals [PDF]
, 2003 Using finite-difference time-domain calculations, we investigate out-of-plane coupling between a square-lattice planar photonic crystal and a conventional waveguide located above the photonic crystal.
Scherer, Axel, Witzens, Jeremy
core +1 more source