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Updated: Jul 9, 2026

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Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
Published on: December 3, 2013
Simultaneous spatial and temporal walk-off compensation in frequency-doubling femtosecond pulses in beta-BaB(2)O(4)
Optics Letters
|December 19, 2007
Abstract:
We experimentally demonstrate the benefits of simultaneous compensation of spatial and temporal walk-off in frequency doubling of 800-nm 250-fs pulses, using three active and two compensating beta-BaB(2)O(4) crystals. The compensating crystals reverse both birefringent and group-velocity walk-off, resulting in a factor-of-4.5 improvement in doubling efficiency relative to one of the active crystals while maintaining the short pulse duration and the symmetric spatial profile that are characteristic of the single crystal.
