Results 91 to 100 of about 530,378 (278)
Dissimilar directional couplers showing -symmetric-like behavior
New Journal of Physics, 2017 Despite the benefits which the directional couplers based on parity-time symmetric systems may offer to the field of integrated optics, the realization of such couplers relies on rather strict design constraints on the waveguide parameters.
Wiktor Walasik +2 more
doaj +1 more source
Fractal Photonic Crystal Waveguides
, 2004 We propose a new class of one-dimensional (1D) photonic waveguides: the fractal photonic crystal waveguides (FPCWs). These structures are photonic crystal waveguides (PCWs) etched with fratal distribution of grooves such as Cantor bars.
Bertolotti +22 more
core +1 more source
Super- and subradiance of clock atoms in multimode optical waveguides
New Journal of Physics, 2019 The transversely confined propagating modes of an optical fiber mediate virtually infinite range energy exchanges among atoms placed within their field, which adds to the inherent free space dipole–dipole coupling.
Laurin Ostermann +3 more
doaj +1 more source
A Rigorous Circuit Model for Simulation of Large-Scale Photonic Integrated Circuits
IEEE Photonics Journal, 2012 A rigorous circuit model for the simulation of large-scale photonic integrated circuit (PIC) is proposed and validated. Different from the conventional circuit theory, both guided and radiation fields are taken into consideration in the circuit model.
Wei-Ping Huang, Lin Han, Jianwei Mu
doaj +1 more source
IEEE Photonics Journal, 2012 We simulate and analyze the mode properties and propagation effects of orbital angular momentum (OAM) modes in a ring fiber. A ring fiber with 0.05 up-doping is designed in simulation to support up to 10 OAM modes while maintaining single-mode condition ...
Yang Yue +11 more
doaj +1 more source
Nanowire photonic crystal waveguides for single-atom trapping and strong light-matter interactions [PDF]
, 2014 We present a comprehensive study of dispersion-engineered nanowire photonic crystal waveguides suitable for experiments in quantum optics and atomic physics with optically trapped atoms. Detailed design methodology and specifications are provided, as are
S. Yu +9 more
semanticscholar +1 more source
, 2014 We develop a method for transmission stabilization and robust dynamic switching for colliding optical soliton sequences in broadband waveguide systems with nonlinear gain and loss.
Nguyen, Quan M. +2 more
core +1 more source
Advanced Photonics 2013, 2013 We present an easily fabricated waveguide prism for the terahertz (THz) frequency range. The prism is made of polypropylene and uses waveguide dispersion to spatially separate frequencies over the range of 0.1 to 0.7 THz. The diffraction properties of the prism were determined using electromagnetic field simulations and the waveguide parameters were ...
Maik Scheller +4 more
openaire +4 more sources
Experimental Verification of Degenerate Band Edge Dispersion in Silicon Photonic Integrated Circuits
IEEE Photonics Journal, 2016 On resonance, periodic dielectric media of finite length exhibit large and distributed internal electric field distributions. The large and distributed fields have been exploited for applications in light emission, optical switching, and nonlinear optics.
Justin R. Burr +2 more
doaj +1 more source
Holographic waveguides in photopolymers
Optics Express, 2019 The possibilities that offer the holographic optical elements for photovoltaic and "see through display" applications open new windows for holographic recording materials. In this sense, some specific characteristics are required for each particular application. Waveguides are one of the key elements for these applications. Photopolymers are one of the
R. Fernández +7 more
openaire +3 more sources