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Characterization, Control and Application of Isolated Attosecond Pulses

Date Mi, 10.07.2019 - Mi, 10.07.2019
Time tbd
Speaker Prof. Chii-Dong Lin, Kansas State University, USA
Location ETHZ, Hönggerberg Campus, tbd
Program In the past two decades we have witnessed great progress in attosecond sciences. For studying dynamics of matter, ideally, one would like to generate isolated attosecond pulses at ever shorter duration, and at higher photon energy. While such pulses are being generated, issues related to the accurate characterization and/or control of such pulses have not drawn great attention, especially by theorists. In this talk, I will address three issues. First, I will report our recent effort in developing a more efficient and accurate mthod for characterizing the spectral phase of a broad-band attosecond pulse that overcomes the limitations of the conventional FROG-CRAB method. Second, I will illustrate how one can efficiently control the generation of attosecond pulses by fine tuning the degrees of alignment of CO2 molecules. Third, I will provide an example on how one can reconstruct the whole electron wave packet generated by an isolated attosecond pulse, however, with overwhelming restrictions. Proper tools for describing attosecond experiments remain elusive, and the significance of the extracted time-delay from the electron wave packet is limited.
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Link Laser Seminars
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