Measurement of Ultrafast Dynamics of Photoexcited Carriers in $\beta$-Ga${}_2$O${}_3$ by Two-Color Optical Pump-Probe Spectroscopy

Okan Koksal, Nicholas Tanen, Debdeep Jena +2

We report results from ultrafast two-color optical pump-probe spectroscopy on bulk $\beta$-Ga${}_2$O${}_3$. A two-photon absorption scheme is used to photoexcite carriers with the pump pul…