| Budget Amount *help |
¥41,080,000 (Direct Cost: ¥31,600,000、Indirect Cost: ¥9,480,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2015: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Outline of Final Research Achievements |
We could reveal ultrafast dynamics of simple molecules and succeed in controlling the reaction pathways using a pair of attosecond pulse train (APT). First, we discovered the `~1-fs settling time needed for creating a vibrational wavepacket in H2+ molecule. Two-dimensional spectrogram, which was a record of the kinetic energy release (KER) of H+ fragment with scanning delay between two APTs, was analyzed by the frequency-resolved optical gating technique. We found the initial delays between the vibrational wavefunctions forming the wavepacket, which can be interpreted as the settling time (Nat. Commun. 6:8197 (2015).). Second, we found an attosecond electronic wavepacket generated in N2 and N2+ molecules (Sci. Adv. 1, e1500356 (2015).). Third, we controlled the dissociation pathways of H2+ by utilizing the ultrafast vibrational motion. Only 8-fs delay difference of the control APT switched the dissociation pathway of 2pσu state to that of 2pπu state (Nat. Commun. 7:12835(2016)).
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