Saturation spectroscopy techniques were used to demonstrate the
ability to make spatially resolved temperature measurements by
exploiting the electronic transition in molecular iodine.
Doppler-free saturation spectroscopy measurements resulted in
hyperfine spectral profiles for the P(70) 17-1 and P(53) 19-2
ro-vibrational transitions between the electronic levels.
Doppler-limited saturation spectroscopy, an adaptation of the
Doppler-free technique in which beams propagate in the same
direction and cross within the gas sample, allowed for the
measurement of spatially resolved Doppler profiles for the same
transitions. The profiles were measured at several spatial
positions in I2 cel1s with measured temperature gradients. The
technique did not produce accurate temperature readings; however,
the saturation spectroscopy variant did produce profiles that were
spatially resolved, with an interaction volume of approximately 12
x 1 x 1 (mm units). This thesis was motivated by the Air Force's
Airborne Laser Laboratory (ABL), which has a need to discriminate a
spatially distributed temperature distribution. The Chemical Oxygen
lodine Laser (COIL), which is the high power directed energy source
for ABL, has a low concentration as a reaction byproduct.
Line-integrated optical temperature measurements inside the COIL
reaction chamber have been higher than predicted, which can have a
dramatic effect on the threshold condition for the laser.
General
| Imprint: |
Biblioscholar
|
| Country of origin: |
United States |
| Release date: |
November 2012 |
| First published: |
November 2012 |
| Authors: |
James W. Myers
|
| Dimensions: |
246 x 189 x 7mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
122 |
| ISBN-13: |
978-1-288-33281-6 |
| Categories: |
Books >
Social sciences >
Education >
General
|
| LSN: |
1-288-33281-5 |
| Barcode: |
9781288332816 |
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