Affiliation:
1. University of Shanghai for Science and Technology
2. Tomsk State University
3. Novosibirsk State University
Abstract
In this paper, a model of generating mid-infrared (MIR) ultrashort laser pulse through difference frequency generation (DFG) is established. The pulse evolution relationship among the pump, signal, and idler pulses during the DFG process, as well as the effects of crystal length, pulse energy of the pump and signal lights, pulse width, and other factors on the characteristics of the MIR pulse are explored. Furthermore, through simulations from the time domain to the frequency domain, the spectral characteristics and angular distribution of MIR were analyzed. DFG experimental data are also presented to support the model.
Funder
High-end Foreign Experts Recruitment Plan of China
National Natural Science Foundation of China
Decree of the Government of the Russian Fundation