Abstract by Mahonri Romero
Physics and Astronomy
Gas Species Dependence of Nonlinear Thomson Scattering an Intense Laser Focus
We study how the gas species used to donate electrons affects the measured signal of nonlinear Thomson scattering. In this experiment, a short-pulse laser is focused to produce high-intensity (~1.0x10^18 W/cm^2) in a low pressure (a few Torr) of gas. Electrons liberated from the gas atoms are accelerated violently and emit harmonic light out the side of the focus. The emitted light is polarization resolved and detected with single-photon counting equipment. In this presentation, we study how varying the species of gas in the focus affects the polarization-resolved signal.