Results 21 to 30 of about 38,554 (260)

Observation of Angle Switching of Dressed Four-Wave Mixing Image

open access: yesIEEE Photonics Journal, 2012
We experimentally report that angle-control dynamics in the nonlinear propagation of the images of the probe, generated four-wave mixing (FWM) and fluorescence signals beams in FWM process in a cascade three-level, as well as a two-level atomic systems ...
Suling Sang   +6 more
doaj   +1 more source

Four-Wave Optical Parametric Amplification in a Raman-Active Gas

open access: yesPhotonics, 2015
Four-wave optical parametric amplification (FWOPA) in a Raman-active medium is experimentally investigated by use of an air-filled hollow fiber. A femtosecond pump pulse shorter than the period of molecular motion excites the coherent molecular motion of
Yuichiro Kida, Totaro Imasaka
doaj   +1 more source

Degenerate Four-Wave Mixing in Phycoerythrin Dye-Doped Nanoparticles

open access: yesInternational Journal of Optics, 2021
We have generated a phase-conjugate (PC) wave from nanoparticles with a new microscopic system proposed. The microscope includes a confocal system with a degenerate four-wave mixing (DFWM) system, which plays a major role in generating the phase ...
Tomoki Tsuchiya, Chikara Egami
doaj   +1 more source

Real-Time Waveform Characterization by Using Frequency-Resolved Optical Gating Capable of Carrier-Envelope Phase Determination

open access: yesIEEE Photonics Journal, 2014
We present real-time waveform characterization of ultrashort pulses by the use of a pulse-front tilt in frequency-resolved optical gating capable of carrier-envelope phase determination.
Hideto Shirai, Yutaka Nomura, Takao Fuji
doaj   +1 more source

Spontaneous Four-Wave Mixing in an Irregular Nanofiber

open access: yesEPJ Web of Conferences, 2015
The features of biphotons states generated via spontaneous four-wave mixing in nanofibers with a variable cross-section are studied. The spectral amplitude of the biphoton field is calculated and the effects of interference and phase modulation of the ...
Shukhin A.A., Kalachev A.A.
doaj   +1 more source

Dynamics of fermionic four-wave mixing [PDF]

open access: yesPhysical Review A, 2003
We study the dynamics of a beam of fermions diffracted off a density grating formed by fermionic atoms in the limit of a large grating. An exact description of the system in terms of particle-hole operators is developed. We use a combination of analytical and numerical methods to quantitatively explore the Raman-Nath and the Bragg regimes of ...
Christ, H., Search, C. P., Meystre, P.
openaire   +2 more sources

All Optical Signal-Processing Techniques Utilizing Four Wave Mixing

open access: yesPhotonics, 2015
Four Wave Mixing (FWM) based optical signal-processing techniques are reviewed. The use of FWM in arithmetical operation like subtraction, wavelength conversion and pattern recognition are three key parts discussed in this paper after a brief ...
Refat Kibria, Michael W. Austin
doaj   +1 more source

A novel four-wave mixing compensator [PDF]

open access: yesSPIE 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

Soliton Generation and Rogue-Wave-Like Behavior Through Fourth-Order Scalar Modulation Instability

open access: yesIEEE Photonics Journal, 2009
We numerically study the underlying nonlinear dynamics of ultra-broadband optical wavelength converters based on fourth-order scalar modulation instability.
Kamal Hammani   +3 more
doaj   +1 more source

Two-dimensional plasmonic waveguides for nanolasing and four-wave mixing

open access: yesNew Journal of Physics, 2019
Plasmonic waveguides are an essential element of nanoscale coherent sources, including nanolasers and four-wave mixing (FWM) devices. Here we report how the design of the plasmonic waveguide needs to be guided by the ultimate application.
Guangyuan Li   +2 more
doaj   +1 more source

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