Title :
Time-domain BPM for ultrashort pulse propagation in nonlinear multilayers
Author :
Locatelli, Andrea ; Pigozzo, Filippo Maria ; Modotto, Daniele ; Capobianco, Antonio-Daniele ; De Angelis, Costantino
Author_Institution :
Dipt. di Elettronica per l´´Automazione, Univ. di Brescia, Italy
Abstract :
We elaborated a time-domain bidirectional beam propagation method able to efficiently model ultrashort pulse propagation in quadratic multilayered devices. This novel numerical tool permits us to identify the reasons that determine the reduction of second-harmonic generation efficiency as the pump pulses duration decreases.
Keywords :
high-speed optical techniques; laser beams; optical harmonic generation; optical multilayers; nonlinear multilayers; pump pulses; quadratic multilayered devices; second-harmonic generation; time-domain bidirectional beam propagation; ultrashort pulse propagation; Bismuth; Laser excitation; Nonhomogeneous media; Nonlinear optics; Optical propagation; Optical pulse generation; Periodic structures; Refractive index; Time domain analysis; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.833046
