BYU

Abstract by Clayton Moss

Personal Infomation


Presenter's Name

Clayton Moss

Degree Level

Masters

Co-Authors

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

Abstract Infomation


Department

Chemistry and Biochemistry

Faculty Advisor

Jeremy Johnson

Title

Multi-Beam Plasma Terahertz Generation

Abstract

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.