Abstract
Laser-pulse filamentation in Kerr media induced by a strongly elliptic input beam leads to breakup into a periodic array of filaments. In the plane of the filament array we observe strong Stokes and anti-Stokes emission at large angles. For 1 ps input pulses the measured angles are found to support two different phase-matching configurations: one nontransversally phase matched and the other perfectly phase matched. Shorter 200 fs pulses give rise to group-velocity-matched Raman conversion.
| Original language | English |
|---|---|
| Article number | 055802 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 76 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 26 Nov 2007 |
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