Results 41 to 50 of about 383,095 (196)

Ultra-fast 1-bit comparator using nonlinear photonic crystalbased ring resonators [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2019
In this paper, a photonic crystal structure for comparing two bits has beenproposed. This structure includes four resonant rings and some nonlinear rods.
Seyyed Mohammad Hosein Jalali   +2 more
doaj  

Note on the effect of a massive accretion disk in the measurements of black hole spins [PDF]

open access: yes, 2014
The spin measurement of black holes has important implications in physics and astrophysics. Regardless of the specific technique to estimate the black hole spin, all the current approaches assume that the space-time geometry around the compact object is ...
Bambi, Cosimo   +2 more
core   +3 more sources

Kerr coefficients of plasma resonances in Josephson junction chains

open access: yes, 2015
We present an experimental and theoretical analysis of the self- and cross-Kerr effect of extended plasma resonances in Josephson junction chains. We calculate the Kerr coefficients by deriving and diagonalizing the Hamiltonian of a linear circuit model ...
Buisson, Olivier   +8 more
core   +3 more sources

Phase Sensitive Parametric Interactions in a $Ga_{0.5}In_{0.5}P$ Photonic Crystal Waveguide

open access: yesIEEE Photonics Journal, 2016
We report phase sensitive amplification in a $1.5\mathrm{\,mm}$ long, $Ga_{0.5}In_{0.5}P$ dispersion engineered photonic crystal waveguide which has a flattened dispersion profile.
Amnon Willinger   +4 more
doaj   +1 more source

A study of optical solitons with Kerr and power law nonlinearities by He’s variational principle [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2009
This paper studies optical solitons, in presence of perturbation terms, by the aid of He’s variational principle. The inter-modal dispersion, self-steepening and nonlinear dispersion are all treated as perturbation terms.
Topkara Engin   +4 more
doaj   +1 more source

Raman-induced Kerr-effect dual-comb spectroscopy [PDF]

open access: yesOptics Letters, 2012
We report on the first demonstration of nonlinear dual-frequency-comb spectroscopy. In multi-heterodyne femtosecond Raman-induced Kerr-effect spectroscopy, the Raman gain resulting from the coherent excitation of molecular vibrations by a spectrally-narrow pump is imprinted onto the femtosecond laser frequency comb probe spectrum.
T. Ideguchi   +4 more
openaire   +5 more sources

Optical branched flow in nonlocal nonlinear medium

open access: yesNanophotonics
When light propagates through a randomly correlated, slowly varying medium, it generates optical branched flow. Previous studies have demonstrated that the self-focusing effect in optical media can accelerate the appearance of the first branching points ...
Zhao Tongxun   +4 more
doaj   +1 more source

A Comparative Analysis on Fully Integrated Spectral Broadening of Kerr Frequency Combs

open access: yesIEEE Photonics Journal, 2017
Microresonator-based frequency combs have potential to achieve on-chip frequency metrology. To obtain high-power comb lines at f and 2f for self-referenced stabilization, we evaluate the feasibility of building a fully integrated comb generator with ...
Jing Wang   +4 more
doaj   +1 more source

Composition-tuned magneto-optical Kerr effect in L10-MnxGa films with giant perpendicular anisotropy

open access: yes, 2016
We report the large polar magnetooptical Kerr effect in L10-MnxGa epitaxial films with giant perpendicular magnetic anisotropy in a wide composition range.
Brandt, L.   +3 more
core   +1 more source

Magneto-optical Kerr effect and magnetization structure of permalloy microparticles under mechanical stress

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
In this work, changes in the domain structure of planar permalloy microparticles under mechanical stress have been studied. For this purpose, an array of particles under mechanical stress has been formed on the silicon substrate.
T.F. Khanipov   +5 more
doaj  

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