We demonstrate that, for tilted pulses, the contribution to group velocity that is due to spatial walk-off can compensate for the group-velocity mismatch in three-wave interactions. With 100-fs, 0.4-mm pump pulses in b-barium borate, we obtained efficient parametric generation of collinear superfluorescence tunable in the range from 0.456 to 3.25 mm
Matching of group velocities by spatial walkoff in collinear three-wave interaction with tilted pulses
DI TRAPANI, PAOLO;ANDREONI, ALESSANDRA;
1996-01-01
Abstract
We demonstrate that, for tilted pulses, the contribution to group velocity that is due to spatial walk-off can compensate for the group-velocity mismatch in three-wave interactions. With 100-fs, 0.4-mm pump pulses in b-barium borate, we obtained efficient parametric generation of collinear superfluorescence tunable in the range from 0.456 to 3.25 mm
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