Excimer Laser Progress Report Brendan Pratt University of Connecticut Advisor: Dr. Richard T. Jones.

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Excimer Laser Progress Report Brendan Pratt University of Connecticut Advisor: Dr. Richard T. Jones

Recap Acquired all components required for initial testing. Initial pulses showed lasing for approximately 5 minutes. Discovered correct procedure for passivation from a Lambda Physik Engineer. Duration of light produced from passivation indicates the quality of the laser system. Laser intensity increased to 140mJ, but duration still lasted only 5 minutes.

Plan of Attack After talking with a local laser group, it was decided that the interior of the gas cavity may be contaminated. We decided to undergo a major disassembly to remove any debris that could contaminate the fluorine gas.

Inside the Gas Cavity

Results We have now seen red light for over 4 hours The laser beam has not yet been profiled quantitatively. However, lasing can be visually seen for over 25 minutes. We plan to continue passivation procedures until we hit a limit.