Results 111 to 120 of about 534,558 (401)
Non-steady-state double-resonant extremely asymmetrical scattering of waves in periodic gratings [PDF]
Physics Letters A 310, 214-222 (2003), 2005 Double-resonant extremely asymmetrical scattering (DEAS) is a strongly resonant type of Bragg scattering in two joint or separated uniform gratings with different phases. It is characterised by a very strong increase of the scattered and incident wave amplitudes inside and between the gratings at a resonant phase shift between the gratings.
arxiv +1 more source
Design and fabrication of a two dimentional grating light valve using temperature dependence of the refractive index of liquids [PDF]
, 2008 Design and fabrication of a two dimensional tuneable grating has been proposed. A transmissive 2D square well grating is fabricated. The holes of the grating then is filled with a liquid which it’s refractive index is depend on the temperature.
Latifi, Hamid +2 more
core
Laser interference lithography with highly accurate interferometric alignment [PDF]
, 2005 It is shown experimentally that in laser interference lithography, by using a reference grating, respective grating layers can be positioned with high relative accuracy.
Hoekstra, Hugo J.W.M. +5 more
core +3 more sources
Theoretical Computer Science, 1994 AbstractThis note proves the existence of acyclic directed graphs of logarithmic depth, such that a superlinear number of input—output pairs remain connected after the removal of any sufficiently small linearly sized subset of the vertices. The technique can be used to prove the analogous, and asymptotically optimal, result for graphs of arbitrary ...
openaire +2 more sources
Optics Express, 2014 We demonstrate fully-etched fiber-waveguide grating couplers with sub-wavelength gratings showing high coupling efficiency as well as low back reflections for both transverse electric (TE) and transverse magnetic (TM) modes.
Yun Wang +7 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.A scintillating polymeric composites loaded with hafnia nanoparticles is engineered to obtain a highly luminous material, thus achieving a 400% improvement of the scintillation yield under soft X‐rays. The nanocomposite is employed to realize a multilayer heterostructured prototype scintillator than enable for ultrafast time coincidence resolution in ...
Matteo Sala +12 more
wiley +1 more source
Plasmon-Assisted Direction- and Polarization-Sensitive Organic Thin-Film Detector
Nanomaterials, 2020 Utilizing Bragg surface plasmon polaritons (SPPs) on metal nanostructures for the use in optical devices has been intensively investigated in recent years. Here, we demonstrate the integration of nanostructured metal electrodes into an ITO-free thin film
Michael J. Haslinger +7 more
doaj +1 more source
Waveguide grating mirror in a fully suspended 10 meter Fabry-Perot cavity
, 2011 We report on the first demonstration of a fully suspended 10m Fabry-Perot cavity incorporating a waveguide grating as the coupling mirror. The cavity was kept on resonance by reading out the length fluctuations via the Pound-Drever-Hall method and ...
Barr, Bryan W. +16 more
core +1 more source
Ultra-Compact Silicon Photonic 512 × 512 25 GHz Arrayed Waveguide Grating Router
IEEE Journal of Selected Topics in Quantum Electronics, 2014 This paper discusses design, fabrication, and characterization of a 512 × 512 arrayed waveguide grating router (AWGR) with a channel spacing of 25 GHz.
S. Cheung, T. Su, K. Okamoto, S. Yoo
semanticscholar +1 more source
Tunable Infrared Emissivity Using Laser‐Sintered Liquid Metal Nanoparticle Films
Advanced Functional Materials, EarlyView.This paper reports a decrease in the IR emissivity of liquid metal particle films after laser exposure. It is concluded that the decrease in IR emissivity is not due to changes in the film's topography but rather to sub‐surface sintering of the particles. This phenomenon enables encrypting messages and camouflaging laser‐processed patterns.
Sooik Im +12 more
wiley +1 more source