Group velocity mismatch means that pulses get temporally separated in a medium due to different group velocities, or (quantitatively) the difference of ...

The range of wavelengths (or frequencies) that achieve approximate phase-matching is the phase-matching bandwidth. ... Group-velocity mismatch limits bandwidth.

A new method, to our knowledge, for use in the ultraviolet spectral range was developed for the direct measurement of the group-velocity mismatch (GVM) between ...

Avoiding group-velocity mismatch is critical for ultrafast nonlinear interaction to obtain efficient conversion efficiency. (a) The widely used QPM scheme based ...

We find that for interferometric autocorrelation and intensity autocorrelation type II phase matching, GVM has an appreciable effect. While for intensity ...

23 июн. 2015 г. · Avoiding group-velocity mismatch is critical for ultrafast nonlinear interaction to obtain efficient conversion efficiency. (a) The widely used ...

When the group velocity mismatch is nonzero, the measurement becomes sensitive to the phase matching condition. Two special pulse shapes for which the ...

When the group velocity mis- match is nonzero, the measurement becomes sensitive to the phase matching condition. Two special pulse shapes for which the measure ...

If the group-velocity mismatch (GVM) is taken into account, the coupled-mode approach results in nonlinear partial differential equations that can be explicitly ...

The effects of group- and phase-velocity mismatch are well known in optical harmonic generation, but the nondegenerate cases remain unexplored.