Related Experiment Video
Updated: Sep 20, 2025

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Ultrafast Time-resolved Polarization-dependent Investigations on the Dynamics in the 2 B2 State of NO2 Molecules
Yang Liu1, Tian Sun1, Longxing Zhou2
1Institute of Atomic and Molecular Physics, Jilin University, Changchun, 130012, China.
Abstract:
We perform time-resolved polarization-dependent study on ultrafast dynamics in the 2 B2 state of NO2 . A linearly-polarized 400 nm femtosecond laser is used to resonantly pump NO2 to its first excited state 2 B2 , and the time-dependent ionic yields produced via strong field ionization at 800 nm are measured under different laser polarizations. The yield ratios measured with the lasers perpendicular and parallel to each other first decrease and then increases as the wave packet evolves on the excited state, with a minimum ratio at 180 fs delay time, which can be attributed to the evolution time in the 2 B2 state. The behavior of the time-resolved ionization in elliptically polarized laser field is also investigated and discussed.
Related Concept Videos
¹H NMR of Conformationally Flexible Molecules: Temporal Resolution
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
UV–Vis Spectroscopy: Molecular Electronic Transitions
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Two-Dimensional (2D) NMR: Overview
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse....
¹H NMR of Labile Protons: Temporal Resolution
The –OH proton in alcohols typically appears in the range of δ 2 to 5 ppm but can vary depending on the specific...

