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Resolution enhancement of photoelectron spectra by coherent phase control

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Abstract

In this paper, we study theoretically, the coherent phase control of (2+1) resonantly enhanced multiphoton ionization photoelectron spectra in cesium atom system by shaping the femtosecond pulse with π phase step modulation under weak laser field. Our results show that the photoelectron spectra can be greatly narrowed and the photoelectron intensity can be enhanced after π phase step modulation by precisely setting the phase step position. Also, we show that the high-resolution photoelectron spectra and the fine energy-level diagram of the two closed excited states can be obtained.

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Acknowledgments

This work is supported by the Open Research Fund of State Key Laboratory of Precision Spectroscopy, East China Normal University.

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Authors and Affiliations

  1. School of Science, Nantong University, Nantong, 226007, China

    Y X Huang, S W Xu, X M Ji & X H Yang

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  1. Y X Huang
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  2. S W Xu
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  3. X M Ji
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  4. X H Yang
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Correspondence to S W Xu.

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Huang, Y.X., Xu, S.W., Ji, X.M. et al. Resolution enhancement of photoelectron spectra by coherent phase control. Indian J Phys 87, 587–591 (2013). https://doi.org/10.1007/s12648-013-0273-9

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  • DOI: https://doi.org/10.1007/s12648-013-0273-9

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