Molcular dynamics studies by a newly developed photoelecton-photoion slice imaging apparatus

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13927
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Mizuse Kenta 東京工業大学, 理学院, 助教 (70613157)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 化学反応動力学 / フェムト秒化学 / クラスター化学 / 分子間相互作用 / 波束ダイナミクス / クーロン爆発 / イオンイメージング

Outline of Final Research Achievements

Charged-particle imaging for gas-phase molecular systems is one of the powerful tools to study molecular dynamics of interest. In a typical imaging method, however, there have been several dynamics which cannot be observed due to experimental limitations. In this study, to overcome difficulties in existing methods, we developed a new spatial slice imaging apparatus. In our method, only photoelectrons/ions in the polarization plane of laser pulses are directly selected by a mechanical slit and then imaged. We applied our method to laser-driven rotational wavepacket, and (the square of) rotational wavefunctions in electronic exited state molecules. In the observed image, wave, quantum nature of dynamics can be clearly seen. We believe our method opened a new way to probe the molecular dynamics.

Free Research Field

物理化学