Abstract
Elliptic X-shaped light bullets, which are generated as nondiffraction elliptic Bessel-like beams with central humps of elliptical shape during the propagation of asymmetric input ultrashort pulses in normal dispersive quadratic media, are demonstrated to be quite stable against wave-packet breakup due to asymmetric input or anisotropic diffraction. Walking elliptic X-shaped light bullets can be observed without spatial wave-packet breakup for strongly coupled fundamental-wave and second-harmonic ultrashort pulses with nonvanishing group-velocity mismatch.
| Original language | English |
|---|---|
| Pages (from-to) | 820-822 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 32 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1 Apr 2007 |