Identification of two new electronic transitions of TaF using Intracavity Laser Spectroscopy

Bales, Kristin N.

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https://hdl.handle.net/2142/104310 Copy

Description

Title

Identification of two new electronic transitions of TaF using Intracavity Laser Spectroscopy

Author(s)

Bales, Kristin N.

Contributor(s)

• O'Brien, James J.
• O'Brien, Leah C.
• Harms, Jack C.

Issue Date

2019-06-19

Keyword(s)

Metal containing

Abstract

Two new electronic transitions of TaF have been recorded at high resolution using Intracavity Laser Spectrscopy (ILS). The TaF molecules were produced in a current-regulated RF discharge operating with 0.35-0.40 A applied to a Ta-lined Cu hollow cathode. The hollow cathode was located within the resonator cavity of a dye laser, tunable over the 14,500-17,200 \wn range using DCM and R6G laser dyes. Effective pathlengths from 0.40-2.25 km were utilized with the ILS method. Five bands were observed with red-degraded bandheads near 15,366 \wn, 16,033 \wn, 15,630 \wn, 16,327 \wn, and 16,930 \wn that have been respectively assigned as the (0,0) and (0,1) bands of the [16.0] $\Omega$=0-\textit{X} $\Omega$=0 transition of TaF, and (0,1), (0,0), and (1,0) bands of the [16.3] $\Omega$=1-\textit{X} $\Omega$=0 transition of TaF. Rotational assignments for the transitions have been confirmed through combination difference analysis using the reported line positions of Ng \textit{et al.} [\textit{J. Chem. Phys.}, \textbf{146}, 094308 (2017)]. These line positions from Ng \textit{et al.} were included in the PGOPHER fit of the newly observed transitions. Results of the analysis will be presented.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104310

DOI

https://doi.org/10.15278/isms.2019.WJ04

Copyright and License Information

Copyright 2019 Kristin N. Bales

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