Results 21 to 30 of about 81,112 (307)

RGB generation by four-wave mixing in small-core holey fibers [PDF]

open access: yes, 2007
We report the generation of white light comprising red, green, and blue spectral bands from a frequency-doubled fiber laser by an efficient four-wave mixing process in submicron-sized cores of microstructured holey fibers.
Horak, P.   +15 more
core   +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

Spectrally resolved wave-mixing between near- and far-infrared pulses in gas [PDF]

open access: yes, 2013
We investigate the nonlinear wave-mixing in gases between intense, short optical pulses and long-wavelength fields (mid infrared and terahertz). We show numerically that the beating between the sum- and difference-frequency generation components can be ...
Schmidt, Bruno E.   +37 more
core   +1 more source

Nanoscale dynamics by short-wavelength four wave mixing experiments

open access: yesNew Journal of Physics, 2013
Multi-dimensional spectroscopies with vacuum ultraviolet (VUV)/x-ray free-electron laser (FEL) sources would open up unique capabilities for dynamic studies of matter at the femtosecond–nanometer time–length scales. Using sequences of ultrafast VUV/x-ray
F Bencivenga   +9 more
doaj   +1 more source

Optical Frequency Comb Generation in Highly Nonlinear Fiber With Dual-Mode Square Microlasers

open access: yesIEEE Photonics Journal, 2018
Optical frequency comb (OFC) generation based on four-wave mixing in highly nonlinear fiber (HNLF) is investigated using dual-transverse-mode square microlaser as a seed source.
Hai-Zhong Weng   +6 more
doaj   +1 more source

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