Multiphoton laser spectroscopy of indium monoiodide

The laser induced fluorescence (LIF) and the multiphoton ionization (MPI) spectra of indium monoiodide have been obtained at ultraviolet and visible wavelengths. Fluorescence from excited indium atoms at 451.1 nm (6s $\sp2$S$\sb{1/2}$ $\to$ 5p $\sp2$P$\sb{3/2}$) is produced by the multiphoton dissociation of InI. The LIF spectrum contains resonances corresponding to transitions between the ground state, X 0$\sp+$ ($\sp1\Sigma\sbsp{0}{+}$), and the second excited electronic state, B 1 $(\sp3\Sigma\sb1)$. Seven previously unreported bands, (4-0), (5-1), (6-2), (3-0), (4-1), (5-2), and (6-3), were observed. Transitions to the first exicted electronic state, A 0$\sp+$ $(\sp3\Sigma\sbsp{0}{+})$, do not appear, indicating that two-photon photodissociation at those wavelengths does not occur. Analysis of the vibrational resonances and suppressions show that the ground state dissociation energy lies between 25 430-25 140 cm$\sp{-1}$ (3.153-3.117 eV) as compared to the commonly accepted value of 27 700 cm$\sp{-1}$ (3.43 eV).

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• King, Kevin Keith

Contributors dc:contributor

• Eden, James G.

• Physics, Molecular

Statement dc:rights

• Copyright 1990 King, Kevin Keith

Language dc:language

eng

Identifier

AAI9021707
(UMI)AAI9021707

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/19387