Multiphoton intraband absorption of femtosecond light pulses in crystals: II. Processes with the participation of acoustic and optical phonons

Abstract

For arbitrary integers n, we have calculated probabilities P_n of n-photon intraband transitions with the participation of longitudinal acoustic and longitudinal optical phonons. Dependences of P_n on the duration of femtosecond pulses have been obtained. These dependences differ from those that are observed in the case of quasisteady electromagnetic radiation.