Results 41 to 50 of about 1,124,267 (228)
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 +7 more
openaire +3 more sources
Contra-directional coupling into slotted photonic crystals for spectrometric applications [PDF]
, 2014 We propose and demonstrate the concept of a contra-directional coupler between a W1 and a slotted photonic crystal waveguide. The bandwidth and operating wavelength of such a coupler can be controlled via its geometrical parameters, and power transfer is
Krauss, T.F. +5 more
core +1 more source
Electrically injected photonic-crystal nanocavities [PDF]
, 2012 Nano-emitters are the new generation of laser devices. A photonic-crystal cavity, which highly confines light in small volumes, in combination with quantum-dots can enhance the efficiency and lower the threshold of this device.
Welna, Karl
core +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
Photonic bands and gap maps in a photonic crystal slab [PDF]
IEEE Journal of Quantum Electronics, 2002 The photonic bands of a two-dimensional (2-D) lattice patterned in a planar waveguide are calculated by expanding the magnetic field on the basis of waveguide modes. The method yields both the truly guided modes of the structure as well as the quasi-guided modes (or guided resonances) which lie above the light line in the first Brillouin zone ...
ANDREANI, LUCIO, AGIO, MARIO
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
Low insertion loss modulator based on a vertically coupled photonic crystal resonator [PDF]
, 2012 We experimentally demonstrate a simple but more efficient technique to modulate and multiplex multiple WDM channels. Our design is based on a bus waveguide vertically coupled to multiple Photonic Crystal (PhC) resonator, each of which modulates an ...
Reed, G T +11 more
core +1 more source
Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials
Advanced Materials, EarlyView.Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley +1 more source
Tunable Fano resonance in photonic crystal slabs
Optics Express, 2006 A three dimensional analysis of a special class of anisotropic materials is presented. We introduce an extension of the Scattering Matrix Method (SMM) to investigate the behavior of anisotropic Photonic Crystal Slabs (PhCS) subject to external radiation.
Jungfeng, Song +3 more
openaire +2 more sources
Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide [PDF]
, 2012 We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform.
Ferrera, Marcello +13 more
core +1 more source