Results 231 to 240 of about 10,332,383 (291)

Group Velocity and the Propagation of Disturbances in Dispersive Media

The Annals of Mathematics, 1925
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Soft microgel networks stabilize and extend nozzle-free water jets. [PDF]

Nat Commun
Razavi A, Roudini M, Winkler A, Liebchen B, von Klitzing R, Mandal S, Rahimzadeh A.   +6 more
europepmc   +1 more source

Exploration of some physical properties of new half-Heusler compounds BiXSr (X = Li and K) using first-principles calculations. [PDF]

RSC Adv
Wei J, Guo Y, Wang G.
europepmc   +1 more source

Velocity-Free Acoustic Emission Source Localization for Complex Structures Using Any-Angle Pathfinding Algorithm. [PDF]

Sensors (Basel)
Li D, Dong L, Wang X, Cheng G, Yang L, Zhu W.   +5 more
europepmc   +1 more source

Optical push broom effect by a moving refractive index front in a silicon Bragg waveguide. [PDF]

Sci Rep
Zhang B, Li H, Cai X, Vega F, Li J, Eich M, Petrov AY, Gaafar MA.   +7 more
europepmc   +1 more source

Ocean scale dispersion of Amazon river plume by chaotic advection. [PDF]

Sci Rep
Iacometti R, Cioppa LD, Busatto J, Falcini F, Iudicone D, Lacorata G.   +5 more
europepmc   +1 more source

Dispersion, group velocity, and multisymplectic discretizations

Mathematics and Computers in Simulation, 2009
The authors consider the dispersive properties of multisymplectic discretization of linear wave and the sine Gordon equations. In particular a leapfrog in space and time scheme and the Preissman box scheme is considered. They find the numerical dispersions are monotonic and that the sign of the group velocity is preserved but for the nonsymplectic ...
Schober, C. M., Wlodarczyk, T. H.
core   +4 more sources

Consideration of dispersion and group velocity dispersion in the determination of velocities of electromagnetic propagation [PDF]

SPIE Proceedings, 2010
Electromagnetic (EM) propagation velocities play an important role in the determination of power and energy flow in materials and interfaces. It is well known that group and phase velocities need to be in opposition in order to achieve negative refractive index.
Chatterjee, Monish Ranjan, Banerjee, Partha P.   +1 more
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Negative group-velocity dispersion using refraction

Journal of the Optical Society of America A: Optics and Image Science, and Vision, 1984
It is shown that a negative contribution to the group-velocity dispersion always accompanies angular dispersion. We describe structures, such as slabs and prisms, that use this contribution to provide adjustable group-velocity dispersion. We discuss, in particular, considerations regarding incorporation of these structures with a laser resonator.
J P Gordon, O E Martinez, R L Fork
exaly   +2 more sources

Raman solitons with group velocity dispersion

Physical Review E, 2006
We consider the coupled propagation of the pump and Stokes waves in a Raman active medium accounting for the group velocity walk off and group velocity dispersion. Interplay of the Raman coherence and the dispersion can lead to the formation of a complete band gap in the spectrum of linear waves consisting of the two consecutive subgaps located at ...
D V, Skryabin, A V, Yulin
openaire   +2 more sources