24 citations · 47 across the 4 of their papers we have counts for
3 papers · 1 filter
Characterization of QPM gratings in quadratic media via second-harmonic-power measurements only
Steffen K. Johansen, Pascal Baldi
A new scheme for non-destructive characterization of quasi-phase-matching grating structures and temperature gradients via inverse Fourier theory using second-harmonic-generation e…
Engineering of spatial solitons in two-period QPM structures
Steffen Kjaer Johansen, Silvia Carrasco, Lluis Torner +1
We report on a scheme which might make it practically possible to engineer the effective competing nonlinearities that on average govern the light propagation in quasi-phase-matchi…
Escape angles in bulk chi(2) soliton interactions
Steffen Kjaer Johansen, Ole Bang, Mads Peter Soerensen
We develop a theory for non-planar interaction between two identical type I spatial solitons propagating at opposite, but arbitrary transverse angles in quadratic nonlinear (or so-…