Related Experiment Video
Updated: Aug 18, 2026

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
Disentangling the volume effect through intensity-difference spectra: application to laser-induced dissociation of
Pengqian Wang1, A Max Sayler, Kevin D Carnes
1J R Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA. pqwang@phys.ksu.edu
Abstract:
An intensity-difference spectrum method is developed to disentangle the intensity volume effect inherent in focused laser beam interaction with gas-phase matter. This method is applicable to a Gaussian beam of constant axial intensity, which keeps the exact contribution from a predetermined intensity range and eliminates the contributions from lower intensities. We apply this method to the angularly resolved kinetic energy release spectrum of laser-induced dissociation of H2+. The difference spectrum at higher intensities is found to be dominated by the bond-softening process, and the distribution shifts to lower energy and becomes narrower with increasing intensity.
Related Concept Videos
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Mass Spectrum: Interpretation
Emission Spectra
¹H NMR of Labile Protons: Deuterium (²H) Substitution
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
¹³C NMR: ¹H–¹³C Decoupling
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...

