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Superluminal tunneling of microwaves in smoothly varying transmission lines
A. B. Shvartsburg, M. Marklund, G. Brodin +1
Tunneling of microwaves through a smooth barrier in a transmission line is considered. In contrast to standard wave barriers, we study the case where the dielectric permittivity is…
Modulational instability of partially coherent signals in electrical transmission lines
M. Marklund, P. K. Shukla
We present an investigation of the modulational instability of partially coherent signals in electrical transmission lines. Starting from the modified Ginzburg-Landau equations and…
Filamentational Instability of Partially Coherent Femtosecond Optical Pulses in Air
M. Marklund, P. K. Shukla
The filamentational instability of spatially broadband femtosecond optical pulses in air is investigated by means of a kinetic wave equation for spatially incoherent photons. An ex…
Statistical description of short pulses in long optical fibers: Effects of nonlocality
P. K. Shukla, M. Marklund
We present a statistical description of the propagation of short pulses in long optical fibers, taking into account the Kerr and nonlocal nonlinearities on an equal footing. We use…
Nonlinear Bessel beams
Pontus Johannisson, Dan Anderson, Mietek Lisak +1
The effect of the Kerr nonlinearity on linear non-diffractive Bessel beams is investigated analytically and numerically using the nonlinear Schrödinger equation. The nonlinearity i…