2 papers
nlin.PS2003
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…
nlin.PS2000
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-…