Abstract by Clayton Moss

Personal Infomation

Presenter's Name

Clayton Moss

Degree Level



Shayne A. Sorenson
Steven K. Kauwe
Jeremy A. Johnson

Abstract Infomation


Chemistry and Biochemistry

Faculty Advisor

Jeremy Johnson


Multi-Beam Plasma Terahertz Generation


Plasma-based generation schemes of terahertz (THz) are promising sources of high-field THz pulses, useful for ultrafast spectroscopic studies. We demonstrate a non-traditional experimental scheme for plasma-based THz generation using multiple laser pulses. With this setup we found that the THz emission of a plasma formed by a commensurate two-color pulse (containing a near IR frequency and its second harmonic) can be enhanced by the addition of an 800-nm pulse. We observed enhancements of the THz electric field by a factor of up to 30. Numerical calculations performed using the well-known photocurrent model are in good agreement with experimental results. Our results and modeling help suggest future avenues of improvement in practical table-top plasma generation of THz.