BYU

Abstract by Brittni Pratt

Personal Infomation


Presenter's Name

Brittni Pratt

Degree Level

Masters

Abstract Infomation


Department

Physics and Astronomy

Faculty Advisor

Justin Peatross

Title

Measurement of Nonlinear Thomson Scattering

Abstract

We measure polarization-resolved nonlinear Thomson scattering from electrons in a high intensity laser focus. The weak scattering signal is distinguished from background noise using single-photon detectors and time-resolved to distinguish a prompt scattering signal from delayed noise photons. The azimuthal and longitudinal components of the fundamental, second, and third harmonics were resolved. These are the first polarization-resolved measurements of nonlinear Thomson scattering. Our measurements match theoretical results, but also show some asymmetry in the emission pattern for the third harmonic.