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Fifth-Order Harmonic Generation using a Coherent Controlled Two-Pulsed Optical Field |
| LIU Ting-Ting;WANG Da-Wei;LU Wei-Xin;SUN Quan;YANG Hong;JIANG Hong-Bing;GONG Qi-Huang |
| Department of Physics and State Key Laboratory for Mesoscopic
Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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LIU Ting-Ting, WANG Da-Wei, LU Wei-Xin et al 2002 Chin. Phys. Lett. 19 1301-1303 |
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Abstract We have experimentally studied the characteristic of fifth-order harmonic radiation produced by two coherent femtosecond laser pulses with a changeable relative phase. The intensities of harmonic generation are found to increase with the coherent degree. In one optical period, the temporal variation of harmonics exhibits an asymmetric characteristic, which is interpreted in terms of ionization theory and the deformation of the wave packets of fundamental field contribution to harmonic generation.
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| Keywords:
42.65.Ky
42.65.Re
33.80.Rv
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Published: 01 September 2002
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| PACS: |
42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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33.80.Rv
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(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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