OSE Dissertation Defense by Mr. Brian Kamer on Ultrafast spectroscopy: Filament Pumped Nitrogen

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Posted: December 2, 2021

Date: Thursday, December 9th, 2021 

Time: 1:00 PM - 2:30 PM

Location:  CHTM, Room. 148 and Zoom

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Meeting ID: 943 9280 6052

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 Committee members:

Dr. Jean Claude Diels  (Committee Chair)
Dr. Francesca Cavallo
Dr. Paul Schwoebel
Dr. Ladan Arissian



Ultrafast phenomena is currently being studied with great vigor due to it’s the plethora of effects.   At the heart of these studies, is the plasma generated by the nonlinear effects available owing to the terawatts of peak power.  The plasma is created as filaments and has been used to guide electric discharges, with the desire to guide lightning.   Another field of study is in remote sensing because plasma can be generated beyond the material being analyzed and the returning emission is transmitted through the material and back to the source.   Considering the atmosphere is almost 80 %, a close examination on the behavior of nitrogen when it is excited by laser filaments and over the range of diffraction less propagation a desire to use the atmosphere as a reservoir of gain to replenish the energy lost.  This thesis is a spectroscopic study on the emissions of diatomic nitrogen ions pump by ultrafast pulses and filaments.