Ultrabroadband Mid-Infrared Pump-Probe Spectroscopy using Chirped-Pulse Upconversion

Abstract

We demonstrated ultrabroadband mid-infrared pump-probe spectroscopy combined with chirped-pulse upconversion in a gas. Ultrafast reflectivity-change signal of an intrinsic germanium was observed in the region from 200 to 5000 cm(-1). (C) 2014 Optical Society of America