journal article·2020-07-02

Rotationally Resolved Excitation Spectra Measured by Slow Electron Detachment from Si2–

Shimpei Iida, Susumu Kuma, Jun Matsumoto, Takeshi Furukawa, Hajime Tanuma, Toshiyuki Azuma, Haruo Shiromaru, Vitali Zhaunerchyk, Klavs Hansen

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Abstract

Laser-induced delayed electron detachment from Si2- stored in an electrostatic ion storage ring was observed on the 10 microsecond time scale. The excitation spectra for photon energies near threshold show well-resolved multipeak structures, which are attributed to rovibronic transitions to the electronic excited state. This structure appears only in the signal measured with the delay. The occurrence of delayed detachment on such a long time scale is unusual for diatomic molecules, suggesting that both the autodetachment and fluorescence are slow.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Spectroscopy and Quantum Chemical Studies · Atomic and Molecular Physics · Advanced Chemical Physics Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan

Atomic, Molecular and Optical Physics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan

Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan

Department of Physics, University of Gothenburg, 41296 Gothenburg, Sweden

Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin 300350, China

School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China

Funding

RIKEN · Japan Society for the Promotion of Science

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