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＃8 Pioneer project seminar
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Asia/Tokyo
Co operation center w317-321
Co operation center w317-321
Description
TITLE:
Frequency-resolved optical gating technique for retrieving the amplitude of a vibrational wavepacket
Speaker: Dr.Yasuo Nabekawa
Affiliation: RIKEN Laser Technology Laboratory
Schedule: Mon 26th Janu 2015, AM11:00-12:00
Place: Co operation center w317-321 RIKEN（ 研究交流棟)
Language: English
http://e3project.riken.jp/seminar/index.html
Abstract:
We propose a novel method to determine the complex amplitude of each eigenfunction comprising a vibrational wavepacket of H$_{2}^{+}$ /D$_{2}^{+}$ molecular ions evolving with a ∼10 fs time scale generated and probed with a pair of attosecond pulse train. We find that the two-dimensional spectrogram of the kinetic energy release (KER) of H$^{+}$/D$^{+}$ fragments plotted against the time delay of the probe pulse is equivalent to the spectrogram used in the frequency-resolved optical gating (FROG) technique to retrieve the complex amplitude of an ultrashort optical pulse. By adapting the FROG algorithm to the delay-KER spectrogram of the vibrational wavepacket, we have reconstructed the complex amplitude.
Frequency-resolved optical gating technique for retrieving the amplitude of a vibrational wavepacket
Speaker: Dr.Yasuo Nabekawa
Affiliation: RIKEN Laser Technology Laboratory
Schedule: Mon 26th Janu 2015, AM11:00-12:00
Place: Co operation center w317-321 RIKEN（ 研究交流棟)
Language: English
http://e3project.riken.jp/seminar/index.html
Abstract:
We propose a novel method to determine the complex amplitude of each eigenfunction comprising a vibrational wavepacket of H$_{2}^{+}$ /D$_{2}^{+}$ molecular ions evolving with a ∼10 fs time scale generated and probed with a pair of attosecond pulse train. We find that the two-dimensional spectrogram of the kinetic energy release (KER) of H$^{+}$/D$^{+}$ fragments plotted against the time delay of the probe pulse is equivalent to the spectrogram used in the frequency-resolved optical gating (FROG) technique to retrieve the complex amplitude of an ultrashort optical pulse. By adapting the FROG algorithm to the delay-KER spectrogram of the vibrational wavepacket, we have reconstructed the complex amplitude.
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