LABORATORY PROJECTS - CHICAGO
Laboratory Spectroscopy of H3+
As part of my dissertation work in Chicago, I studied
vibrational overtone and combination
bands of H3+ using extremely high-resolution,
high-sensitivity spectroscopy.
The first phase of this work was the study of the
v1+2v2 and 2v1+v2 combination
bands using an external cavity tunable infrared diode laser.
The second phase involved the study of the extremely weak fourth
overtone 5v2 band (and other bands
which probe energy levels above the barrier to linearity) using a
Coherent 899 Titanium:sapphire laser.
The detection of the first line of the 5v2 band was reported
in my thesis, and this work has been continued in the Oka group by
graduate student Jennifer Gottfried.
The continued laboratory spectroscopy of higher vibrational states of
H3+ is of potential
astronomical interest should H3+ be detected in emission
in hot objects.
References:
|
J. L. Gottfried, B. J. McCall, and T. Oka
Near-Infrared Spectroscopy of H3+ Above the Barrier to Linearity Journal of Chemical Physics, 118, 10890 (2003) |
LINK
PS |
| B. J. McCall
Laboratory Spectroscopy of H3+ Philosophical Transactions of the Royal Society of London, A358, 2385 (2000) |
PDF
PS |
| B. J. McCall and T. Oka
Combination Band Spectroscopy of H3+ Journal of Chemical Physics, 113, 3104 (2000) |
LINK
PS |
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