相关实验视频

Updated: Jun 23, 2025

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

在双色 (ω+3ω) 强激光场中操纵量子干扰:D₂的强激光场光解离动力学

Zhaopeng Sun^1,2, Yunquan Liu^2,3

¹School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China.

The journal of physical chemistry. A

|June 17, 2024

概括

强大的激光场改变了分子潜力,使光解离研究变得困难. 这项研究表明,使用VUV+IR激光器,几何相控控制了D2+解离动态中的量子干扰.

科学领域:

量子动力学就是量子动力学.
分子物理分子物理学
强电场化学强电场化学

背景情况:

在强电场中研究分子光解离具有挑战性,因为电场诱导的潜在变化.
了解反应机制需要先进的理论方法.

研究的目的:

在合成的VUV+IR激光场中探索D2+的强场光解动力学.
研究分子光解离中的量子干扰现象的控制.

主要方法:

解决三维时间依赖的施罗丁格方程.
使用一个双色激光场 (266 nm VUV + 800 nm IR).

主要成果:

观察到Aharonov-Bohm类量子干扰在光片的角度分布.
通过改变VUV光圆度来证明对量子干扰的控制.
归因于光诱导的潜在能量表面上的几何相积累的干扰.

结论:

几何相为控制分子光解离中的量子干扰提供了一条途径.
这一发现对控制小分子系统中使用几何相位的化学反应有影响.

更多相关视频

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

相关概念视频

Deactivation Processes: Jablonski Diagram

Deactivation Processes: Jablonski Diagram

Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...