Abstract by Claire Rader
Chemistry and Biochemistry
Increasing Terahertz Electric Field by Minimizing Spotsize
Terahertz (THz) radiation with high electric field strengths is used to excite and then study samples in this excited state. The electric field strength increases as the THz radiation focal point decreases, leading to an intense and concentrated interaction between the radiation and the sample. The size of the THz focal point can be optimized using reflective telescopes. We currently have a THz setup with one focusing optic, which allows the beam to diverge and then focus to the sample position. The objective of this research is to find the best set up that will lead to the smallest spot size. I will present modeling on factors that will allow us to optimize that THz focusing, leading to a small THz spot and extremely high electric field strengths.