LoboVault Home
 

Theoretical and experimental studies of optically pumped molecular gas lasers

LoboVault

Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/10902

Theoretical and experimental studies of optically pumped molecular gas lasers

Show full item record

Title: Theoretical and experimental studies of optically pumped molecular gas lasers
Author: Amarin, Ratanavis
Advisor(s): Wolfgang, Rudolph
Committee Member(s): Mansoor, Sheik-Bahae
Sanjay, Krishna
Paul, Schwoebel
Department: University of New Mexico. Dept. of Physics & Astronomy
Subject(s): Gas lasers
Lasers
Optical pumping
Degree Level: Doctoral
Abstract: Optically pumped molecular gas lasers based on vibrational-rotational transitions in the infrared spectral region were studied experimentally and theoretically. A model was developed to predict the performance of such lasers and explore their potentials for energy and power scaling. This rate equation model was applied to explore the performance of a second-overtone (pulsed) and a first-overtone (CW) pumped HBr laser. Experimental improvements concerning temperature spectral tuning and frequency stabilization of a Nd:YAG laser that pumped HBr were accomplished. Lasing at 4 microns was demonstrated from such a system. We identified acetylene and hydrogen cyanide as potential laser gases that can be pumped with lasers emitting in the attractive telecommunication C band region at about 1.5 microns. Estimations and fluorescence measurements suggest the possibility of lasing in the 3 micron region. Lasing was demonstrated for the first time with a 5 ns pump pulse from an optical parametric oscillator using traditional cavities. The first gas filled hollow fiber laser based on population inversion was demonstrated with acetylene and emission in the 3 micron region was observed. An analytical model indicates the possibility of CW lasing with small Stokes shift in both acetylene and HCN.
Graduation Date: May 2010
URI: http://hdl.handle.net/1928/10902

Files in this item

Files Size Format View
WROPMLWithFrontPage.pdf 2.437Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record

UNM Libraries

Search LoboVault


Advanced Search

Browse

My Account