An Analytical Study of Pulse Squeezing in Fourth Harmonic Generation
Sudhir Dalal
Abstract
Squeezing of electromagnetic field is investigated in fundamental mode in fourth harmonic generation under a short-time approximation based on quantum mechanical approach. The occurrence of squeezing in field amplitude and amplitude-squared of fundamental mode has been investigated. The degree of squeezing is found to be dependent on interaction time, coupling parameter of interacting waves and phase values of field amplitude of the fundamental mode during the process. The dependence of squeezing on photon number has also been noticed and found that it increases nonlinearly. The photon statistics of the field in the fundamental mode is found to be sub- Poissonian.