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Modulation Instability of Ultrashort Pulses in Quadratic Nonlinear Media beyond the Slowly Varying Envelope Approximation
Amarendra K. Sarma, Parvendra Kumar
We report a modulational instability (MI) analysis of a mathematical model appropriate for ultrashort pulses in cascaded quadratic-cubic nonlinear media beyond the so-called slowly…
Modulational instability of coupled nonlinear field equations for pulse propagation in a negative index material embedded into a Kerr medium
Amarendra K. Sarma, Manirupa Saha
We have investigated the modulational instability (MI) in a negative index media (NIM) using a new generalized model describing the pulse propagation in a negative index material e…
Modulational instability of few cycle pulses in optical fibers
Amarendra K. Sarma
We investigate the modulational instability of a mathematical model [based on the model proposed by T. Brabec and F. Krausz, Phys.Rev. Lett. 78, 3282(1997)] appropriate for few cyc…
Solitary wave solution to the generalized nonlinear Schrodinger equation for dispersive permittivity and permeability
Amarendra K. Sarma
We present a solitary wave solution of the generalized nonlinear Schrodinger equation for dispersive permittivity and permeability using a scaling transformation and coupled amplit…