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Laser Phase Relations of High-Order Harmonic Generation |
| GE Yu-Cheng |
| Department of Technical Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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GE Yu-Cheng 2006 Chin. Phys. Lett. 23 2461-2464 |
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Abstract Laser phase relations of high-order harmonic generation (HHG) are calculated with the saddle point theory. The results show a two-peak structure including a symmetric and an asymmetric temporal distributions of the instantaneous frequency of HHG radiation. These distributions are fitted with Gaussian and polynomial functions, respectively. Two calculation formulae are presented to analyse attosecond x-rays with specified time duration and energy bandwidth in experiments.
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| Keywords:
42.65.Re
42.65.Ky
32.80.Rm
42.30.Rx
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Published: 01 September 2006
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| PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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42.30.Rx
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(Phase retrieval)
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