Title

Molecular studies using resonance enhanced multiphoton ionization.

Date of Award

2006

Degree Type

Thesis

Degree Name

M.Sc.

Department

Physics

Keywords

Physics, Molecular.

Rights

CC BY-NC-ND 4.0

Abstract

Nitric oxide was studied using the techniques of laser induced fluorescence and resonance enhanced multiphoton ionization. A supersonic expansion beam consisting of nitric oxide and argon gas was crossed with a laser beam. The A2Sigma+ state of nitric oxide was used as an intermediate in the ionization process. Total fluorescence from the A2Sigma + state of nitric oxide was collected while the laser source was scanned from 225.5 nm to 226.9 run to produce an excitation spectrum. Time-of-flight mass spectra of nitric oxide, argon, and nitrogen were collected to verify the ions produced and to calibrate a newly constructed time-of-flight mass spectrometer. In addition to the nitric oxide ions produced by the resonant process, argon and nitrogen ions were produced as a result of non-resonant multiphoton ionization. A Windows-based computer program was created to collect and manipulate data from a digital oscilloscope. The program was written in Visual C++ and was run on an IBM PC.Dept. of Physics. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2006 .M38. Source: Masters Abstracts International, Volume: 45-01, page: 0341. Thesis (M.Sc.)--University of Windsor (Canada), 2006.