Results 21 to 30 of about 2,118,821 (229)
Ultrafast Broadband Nonlinear Optical Response in Co-Doped Sb2Se3 Nanofilms at Near-Infrared
Frontiers in Materials, 2021 Transition metal-doped Sb2Se3 has become a heated topic caused by the strong nonlinear optical response and the ultrafast response time at high laser excitation.
Di Sun +5 more
doaj +1 more source
Nonlinear interfaces: intrinsically nonparaxial regimes and effects [PDF]
, 2009 The behaviour of optical solitons at planar nonlinear boundaries is a problem rich in intrinsically nonparaxial regimes that cannot be fully addressed by theories based on the nonlinear Schrödinger equation.
Boardman A D +10 more
core +2 more sources
Accurate determination of nonlinear refraction in ZnO and Au composite nanostructures
, 2020 It is now well established that the nonlinear optical properties of ZnO nanoparticles can be significantly enhanced by coupling them to metallic nanoparticles.
Sarah L. Walden +3 more
semanticscholar +1 more source
Dark solitons at nonlinear interfaces [PDF]
, 2010 The refraction of dark solitons at a planar boundary separating two defocusing Kerr media is simulated and analyzed, for the first time (to our knowledge). Analysis is based on the nonlinear Helmholtz equation and is thus valid for any angle of incidence.
Aceves +31 more
core +2 more sources
Conical refraction and nonlinearity
Optics Express, 2006 We study conical refraction in crystals where both diffraction and nonlinearity are present. We develop a new set of evolution equations. We find that nonlinearity induces a modulational instability when it is defocussing as well as focussing. We also examine the evolution of incident beams which contain analytic singularities, and in particular ...
R A, Indik, A C, Newell
openaire +2 more sources
Nanophotonics, 2021 Bismuth telluride nanoparticles (NPs) attract attention due to the growth of sensitivity of the Bi2Te3 NPs-containing registrars in the near- and mid-infrared ranges.
Ganeev Rashid A. +9 more
doaj +1 more source
Negative refraction in nonlinear wave systems [PDF]
, 2007 People have been familiar with the phenomenon of wave refraction for several centuries. Recently, a novel type of refraction, i.e., negative refraction, where both incident and refractory lines locate on the same side of the normal line, has been ...
Gang Hu +5 more
core +1 more source
Light Refraction is Nonlinear Optimisation
Journal of Mathematical Study, 2021 In this paper, we show that the near field light refraction can be formulated as a nonlinear optimisation problem, both for a point light source and for a parallel light source.
Jiakun Liu, Xu-Jia Wang
openaire +1 more source
Optics Express, 2019 We utilize the conventional Z-scan technique to provide absolute measurements of third-order nonlinear refraction coefficients (n2) in the mid-wave infrared at 2 µm and 3.9 µm of common optical materials that have transparency windows spanning this ...
T. Ensley, N. Bambha
semanticscholar +1 more source
Three photon absorption in ZnO and ZnS crystals [PDF]
, 2005 We report a systematic investigation of both three-photon absorption (3PA)spectra and wavelength dispersions of Kerr-type nonlinear refraction in wide-gap semiconductors.
He, Jun +4 more
core +1 more source