Laser-phase determination methods and transfer equations for direct temporal structure measure- ments of atto- and femtosecond XUV pulses |
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| Authors: | Ge Yu-Cheng |
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| Affiliation: | Department of Technical Physics, Peking University, Beijing 100871, China |
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| Abstract: | In this paper the laser-phase determination methods and transfer equations are
presented to directly reconstruct the detailed temporal structures
of ultra-short extreme ultraviolet (xuv) pulses from the measured
photoelectron energy spectra (PES). Each transfer equation
includes one of PID
(proportional-integral-differential) terms of PES. The
intensity and instantaneous frequency of attosecond xuv can be
retrieved from the integral term of PES. The
intensity profiles of narrow bandwidth atto- and femtosecond xuvs
can be rebuilt from the proportional and
differential terms of PES respectively. The
methods and equations may be used to improve time resolutions in
measuring ultrashort pulses. |
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| Keywords: | laser-phase determination transfer equation temporal structure photoelectron spectrum |
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