Extension of Harmonic Order by Applying the Interference of Pulses

Chin. Phys. Lett.

1997, Vol. 14

Issue (1): 40-43 DOI:

Original Articles

Extension of Harmonic Order by Applying the Interference of Pulses

HU Su-xing;XU Zhi-zhan;HAN Shen-sheng

Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

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HU Su-xing, XU Zhi-zhan, HAN Shen-sheng 1997 Chin. Phys. Lett. 14 40-43

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Abstract A method is suggested to extend the order of harmonic generation from gas target by applying the interference effect of two pulses of which one is delayed with odd multiples of half-period relative to the other. It means the laser-atom interaction time can be shortened and the saturation intensity of laser-atom interaction is improved so that the atom can emit more higher-order harmonic. With the suggestion, one can extend the harmonic to the plateau cut-off predicted by harmonic generation theory. The numerical simulation gives some insights on this method.

Keywords: 42.65.Ky 32.80.Rm

Published: 01 January 1997

PACS:	42.65.Ky	(Frequency conversion; harmonic generation, including higher-order harmonic generation)
	32.80.Rm	(Multiphoton ionization and excitation to highly excited states)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I1/040

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