9 results found
https://resolver.caltech.edu/CaltechETD:etd-09082005-105846

…1.7 THz. Ultrafast intraband mechanisms having relaxation time constants of 650 fs, in agreement with dynamic carrier heating, and of less than 100 fs, in agreement with intraband carrier-carrier scattering, were determined in the measurements. A novel cross-polarized four-wave m…