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Femtosecond Collisional Dissipation of Vibrating D_{2}
Qiang, Junjie; Zhou, Lianrong; Peng, Yigeng; Yu, Chao; Lu, Peifen; Pan, Shengzhe; Lu, Chenxu; Chen, Gang; Lu, Ruifeng; Zhang, Wenbin; Wu, Jian.
Afiliação
  • Qiang J; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  • Zhou L; School of Physics and Microelectronics Key Laboratory of Materials Physics of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China.
  • Peng Y; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  • Yu C; Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
  • Lu P; Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
  • Pan S; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  • Lu C; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  • Chen G; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
  • Lu R; School of Physics and Microelectronics Key Laboratory of Materials Physics of Ministry of Education, Zhengzhou University, Zhengzhou 450001, China.
  • Zhang W; Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China.
  • Wu J; State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
Phys Rev Lett ; 132(10): 103201, 2024 Mar 08.
Article em En | MEDLINE | ID: mdl-38518314
ABSTRACT
We explored the collision-induced vibrational decoherence of singly ionized D_{2} molecules inside a helium nanodroplet. By using the pump-probe reaction microscopy with few-cycle laser pulses, we captured in real time the collision-induced ultrafast dissipation of vibrational nuclear wave packet dynamics of D_{2}^{+} ion embedded in the droplet. Because of the strong coupling of excited molecular cations with the surrounding solvent, the vibrational coherence of D_{2}^{+} in the droplet interior only lasts for a few vibrational periods and completely collapses within 140 fs. The observed ultrafast coherence loss is distinct from that of isolated D_{2}^{+} in the gas phase, where the vibrational coherence persists for a long time with periodic quantum revivals. Our findings underscore the crucial role of ultrafast collisional dissipation in shaping the molecular decoherence and solvation dynamics during solution chemical reactions, particularly when the solute molecules are predominantly in ionic states.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China