2019 Fiscal Year Final Research Report
Sub-femtosecond molecular imaging
| Project/Area Number |
15H05696
|
|---|
| Research Category |
Grant-in-Aid for Specially Promoted Research
|
| Allocation Type | Single-year Grants |
|---|
| Review Section |
Science and Engineering
Chemistry
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KATO Tsuyoshi
KANYA Reika
IWASAKI Atsushi
Erik
HIROI Takashi
YAMADA Kana
ANDO Toshiaki
MOTOYAMA Hiroto
SATO Takahiro
NAKAI Katsunori
Szidarovszky
FUKAHORI Shinichi
NISHI Takanori
ZHANG Qiqi
ZHANG Youyuan
KOH Sho
|
|---|
| Project Period (FY) |
2015 – 2019
|
| Keywords | 超高速化学 / 反応動力学 / 強光子場科学 / 量子動力学 |
|---|
| Outline of Final Research Achievements |
By developing experimental methods such as pump-probe ion measurements and laser-assisted electron scattering using intense ultrashort pulsed laser sources and by using theoretical methods represented by the extended multi-configuration time-dependent Hartree-Fock method, we have unveiled sub-femtosecond ultrafast dynamics of atoms and molecules in intense laser fields. We have clarified sub-femtosecond molecular dynamics such as intramolecular hydrogen-atom migration in organic molecules, affecting the electronic excitation processes in the sub-femtosecond time domain.
|
| Academic Significance and Societal Importance of the Research Achievements |
分子が光励起されると分子内の電子が光電場に瞬時に応答し電子励起やイオン化が起こり、引き続き進行する分子内の核の運動が化学変化をもたらす。本研究では、これまで明らかにすることができなかったサブフェムト秒領域で起こる超高速過程を、メタノールや窒素分子などの分子を対象として、超短パルスレーザー技術に基づく計測手法を開発するとともに、光電場の中で互いに相関する分子内の電子および核のダイナミクスを記述する理論手法を開発することによって解明した。
|
| Free Research Field |
基礎化学
物理化学
|
