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Photos of Low Res. Lab.
Molecular beam approach to
synthesizing and probing the optical properties of diatomic and triatomic molecules produced under low pressure when a
metal rod is ablated with a pulsed laser source (see diagram below).
New molecules are
produced when a gas flows over the rod. These new molecules are
detected by laser induced fluorescence methods, along with photon counting.
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Homemade dye laser excited
with Ar+ laser.
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Photos of High Res.
Lab.
The method of molecule
production is similar to the low resolution method. Here we can also
perform Stark measurements to determine dipole moments.
The added equipment
provides more precise control of the frequency of laser detection.
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Photos
of TOF-MS/REMPI Lab
The method of molecule production
is similar to the low resolution method. Here we can also perform
time-of-flight mass spectroscopic measurements on the newly made molecules.
When TOF-MS is coupled to
resonance enhanced multi-photon ionization, we then are able to produce and
characterize the diatomic and triatomic molecules
we desire.
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Drawing below illustrates the generation of plasma
containing the molecules under investigation. This molecular beam
system is the heart of the sample generation used in all our experiments.
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Photos
of Millimeter Wave Lab
The method of molecule
production is similar to the low resolution method. Here we can also
perform millimeter wave measurements on the new molecules to obtain precise
molecular rotation parameters.
We generate frequencies from 0-110 GHz using Gunn oscillators
Freq Synthesizers.
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