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arXiv · 0801.0639

Carrier-envelope phase measurement from half-cycle high harmonics

Pengfei Lan·Peixiang Lu·Fang Li·Yuhua Li·Zhenyu Yang
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Abstract

We present a method to distinguish the high harmonics generated in individual half-cycle of the driving laser pulse by mixing a weak ultraviolet pulse, enabling one to observe the cutoff of each half-cycle harmonic. We show that the detail information of the driving laser pulse, including the laser intensity, pulse duration and carrier-envelope phase, can be {\it in situ} retrieved from the harmonic spectrogram. In addition, our results show that this method also distinguishes the half-cycle high harmonics for a pulse longer than 10 fs, suggesting a potential to extend the CEP measurement to the multi-cycle regime.

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Pengfei Lan, Peixiang Lu, Fang Li, Yuhua Li, Zhenyu Yang. 2008-01-04. Carrier-envelope phase measurement from half-cycle high harmonics. https://doi.org/10.1364/oe.16.005868

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