Three- and four-photon excitation of nonequilibrium carriers in broad-band crystals
Garnov S. V. , Epifanov A. S. , Klimentov S. M. , Manenkov A. A. , Prokhorov A. M.
Threeand four-photon interband excitation of nonequilibrium charge carriers in NaCl and KC1 by picosecond laser pulses in the visible and UV ranges have been detected. The corresponding many-photon absorption coefficients and electron mobilities in the conduction band have been determined.