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Direct Imaging of Laser-driven Ultrafast Molecular Rotation
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Generation of multi-octave-spanning laser harmonics by cascaded quasi-phase matching in a monolithic ferroelectric
Wei-Chun Hsu1, Ying-Yao Lai, Chien-Jen Lai
1Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
Optics Letters
|November 21, 2009
Abstract:
We report the generation of the second to the sixth harmonics of a fundamental frequency covering two and a half octaves in a multiply-periodically poled lithium tantalate crystal by cascaded quasi-phase-matched frequency mixing. A frequency comb that is composed of these harmonics will permit the synthesis of a train of periodic subcycle subfemtosecond pulses in a compact setting.
