Results 31 to 40 of about 7,555,112 (257)
Dynamics of fermionic four-wave mixing [PDF]
Physical 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
Soliton Generation and Rogue-Wave-Like Behavior Through Fourth-Order Scalar Modulation Instability
IEEE 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
Spectrally resolved wave-mixing between near- and far-infrared pulses in gas [PDF]
, 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. +59 more
core +1 more source
High-speed hyperspectral four-wave-mixing microscopy with frequency combs
, 2021 A four-wave-mixing, frequency-comb-based, hyperspectral imaging technique that is spectrally precise, potentially rapid, and can in principle be applied to any material, is demonstrated in a near-diffraction-limited microscopy ...
Brad C. Smith (10661714) +2 more
core +1 more source
Two-dimensional plasmonic waveguides for nanolasing and four-wave mixing
New 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
Nanoscale dynamics by short-wavelength four wave mixing experiments
New 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
Wave propagation, phase mixing and dissipation in Hall MHD [PDF]
, 2012 In this thesis the effect of the Hall term in the generalised Ohm’s law on Alfvén (shear) and fast wave propagation and dissipation in the ion cyclotron frequency range is investigated.
Threlfall, James W.
core +2 more sources
Optical Frequency Comb Generation in Highly Nonlinear Fiber With Dual-Mode Square Microlasers
IEEE 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
Highly efficient THz four-wave mixing in doped silicon
Light: Science & Applications, 2021 Third-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica.
Nils Dessmann +15 more
doaj +1 more source
RGB generation by four-wave mixing in small-core holey fibers [PDF]
, 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