Results 51 to 60 of about 653,825 (328)
Invited Article: Enhanced four-wave mixing in waveguides integrated with graphene oxide
APL Photonics, 2018 We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low loss, the FWM ...
Yunyi Yang +8 more
semanticscholar +1 more source
Generation of Phase-Stable Sub-Cycle Mid-Infrared Pulses from Filamentation in Nitrogen
Applied Sciences, 2013 Sub-single-cycle pulses in the mid-infrared (MIR) region were generated through a laser-induced filament. The fundamental (ω1) and second harmonic (ω2) output of a 30-fs Ti:sapphire amplifier were focused into nitrogen gas and produce phase-stable ...
Takao Fuji, Yutaka Nomura
doaj +1 more source
Weak-wave advancement in nearly collinear four-wave mixing
, 2003 We identify a new four-wave mixing process in which two nearly collinear pump beams produce phase-dependent gain into a weak bisector signal beam in a self-defocusing Kerr medium.
Chiao, R. Y. +2 more
core +1 more source
A novel four-wave mixing compensator [PDF]
SPIE Proceedings, 2006 We propose and demonstrate a novel four-wave-mixing (FWM) compensator made of a highly nonlinear fiber and a pump laser. This technique utilizes the additional pi/2 phase delay occurring in every FWM process. Thus, the FWM components generated in the transmission fiber can be cancelled out by the FWM components generated within the FWM compensator.
Huh, JY +3 more
openaire +2 more sources
Phonon propagation dynamics in band-engineered one-dimensional phononic crystal waveguides
New Journal of Physics, 2015 The phonon propagation dynamics in a phononic crystal waveguide, realized via a suspended one-dimensional membrane array with periodic air holes, is investigated as function of its geometry.
Daiki Hatanaka +4 more
doaj +1 more source
, 2018 We study breathers and solitons on different backgrounds in optical fiber system, which is governed by generalized coupled Hirota equations with four wave mixing effect.
Duan, Liang +4 more
core +1 more source
Four-wave mixing enhanced white-light cavity
, 2008 We discuss in-medium propagation dynamics in a white light cavity that leads to an enhancement of the cavity's bandwidth without reducing its maximum intensity buildup.
Evers, J., Fleischhaker, R.
core +1 more source
Degenerate four-wave mixing in the presence of nonuniform pump wave fronts [PDF]
, 1984 We derive the set of coupled equations that describes the process of degenerate four-wave mixing in the presence of spatially nonuniform pump-beam wave fronts. We investigate the influence of phase mismatch between plane-wave pump beams on the efficiency
Crosignani, Bruno, Yariv, Amnon
core +1 more source
Enhanced Four-Wave Mixing in Doubly Resonant Si Nanoresonators
ACS Photonics, 2019 Frequency conversion is one of the main applications of nonlinear optical processes in which a signal is produced at a different wavelength from the excitation wavelength.
R. Colom +11 more
semanticscholar +1 more source
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source