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Published on: July 27, 2018
Carrier-envelope phase effects of a single attosecond pulse in two-color photoionization
Candong Liu1, Maurizio Reduzzi, Andrea Trabattoni
1Dipartimento di Fisica, Politecnico Piazza Leonardo da Vinci 32, 20133 Milano, Italy and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Abstract:
The attosecond streak camera method is usually implemented to characterize the temporal phase and amplitude of isolated attosecond pulses produced by high-order harmonic generation. This approach, however, does not provide any information about the carrier-envelope phase of the attosecond pulses. We demonstrate that the photoelectron spectra generated by an attosecond waveform and an intense synchronized infrared field are sensitive to the electric field of the attosecond pulse. The dependence on the carrier-envelope phase of the attosecond pulse is understood in terms of the coherent superposition of two photoelectron wave packets. This effect suggests an experimentally feasible method for complete reconstruction of attosecond waveforms.
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