Title :
Time-domain optical pump — Terahertz probe spectroscopic imager for carrier lifetime measurements in the pico- to microsecond regime
Author_Institution :
Department of Electrical and Computer Engineering and Research Center OPTIMAS, University of Kaiserslautern, Kaiserslautern, Germany
Abstract :
We demonstrate a spatially resolved method to measure carrier lifetimes and carrier distributions based on optical pump - terahertz probe spectroscopy. The pump-probe delay range spans from 600 ps to 200 μs. The spatial resolution is sub-wavelength being better than 50 μm (<; λ<;sub>center<;/sub>/6 at 1THz).
Keywords :
"Charge carrier lifetime","Spatial resolution","Silicon","Semiconductor device measurement","Optical pumping","Optical pulses"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327872
