Numerical analysis of beam propagation in pulsed cavity ring-down spectroscopy.
A numerical simulation of pulsed cavity ring-down spectroscopy (CRDS) is developed with the commercially available software package GENERAL LASER ANALYSIS AND DESIGN. The model is verified through a series of numerical experiments. Several issues of concern in CRDS are investigated, including spatial resolution, misalignment, non-Gaussian beam input, and the effect of flames inside a ring-down cavity. Suggestions for the design of pulsed CRDS instruments are provided.
Spuler
Scott
S
Division of Engineering, Colorado School of Mines, Golden 80401, USA. sspuler@zolotech.com
Linne
Mark
M