Results 81 to 90 of about 409,958 (292)

Design of four-wave mixing frequency-shift-free amplitude regenerators

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Frequency-shift-free all-optical amplitude regenerators based on fiber-four-wave mixing were investigated by means of simulations. These regenerators, comprised of two stages of highly nonlinear dispersion-shifted fiber, were designed using a heuristic ...
E. A. M. Fagotto   +2 more
doaj   +1 more source

Degenerate four-wave mixing in triply-resonant Kerr cavities

open access: yes, 2010
We demonstrate theoretical conditions for highly-efficient degenerate four-wave mixing in triply-resonant nonlinear (Kerr) cavities. We employ a general and accurate temporal coupled-mode analysis in which the interaction of light in arbitrary ...
Hashemi, Hila   +5 more
core   +1 more source

Nonlinear vectorial two-beam coupling and forward four-wave mixing in photorefractive materials [PDF]

open access: yes, 1986
We present an exact solution of a nonlinear vector analysis of two-beam coupling and forward four-wave mixing in photorefractive ...
Cronin-Golomb, Mark   +3 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Photon-pair generation by non-instantaneous spontaneous four-wave mixing [PDF]

open access: yes, 2017
We present a general model, based on a Hamiltonian approach, for the joint quantum state of photon pairs generated through pulsed spontaneous four-wave mixing, including nonlinear phase-modulation and a finite material response time.
Christensen, Jesper B.   +2 more
core   +2 more sources

Diffraction manipulation by four-wave mixing

open access: yesOptics Express, 2015
We suggest a scheme to manipulate paraxial diffraction by utilizing the dependency of a four-wave mixing process on the relative angle between the light fields. A microscopic model for four-wave mixing in a Lambda-type level structure is introduced and compared to recent experimental data.
Katzir, Itay   +2 more
openaire   +3 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Four-Wave Mixing Aplication in Semiconductor Optical Amplifier

open access: yesAdvances in Electrical and Electronic Engineering, 2004
Four-Wave Mixing (FWM) in semiconductor optical amplifiers is an attrative mechanism for wavelenght coversion in wavelenght-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges. A series
Radoslav Odrobinak
doaj  

Phase Control of Optical Nonreciprocity in Photonic Bandgap Four-Wave Mixing

open access: yesIEEE Photonics Journal, 2016
We investigate the optical nonreciprocity induced by the parametrical amplification and the radiation trapping in an atomic photonic bandgap system both theoretically and experimentally.
Yunzhe Zhang   +6 more
doaj   +1 more source

Polariton Squeezing in Semiconductor Microcavities

open access: yes, 2003
We report squeezed polariton generation using parametric polariton four-wave mixing in semiconductor microcavities in the strong coupling regime. The geometry of the experiment corresponds to degenerate four-wave mixing, which gives rise to a bistability
A. Baas   +7 more
core   +1 more source

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