2021/03/11 by Shanin, A. V., Korolkov, A. I., Kniazeva, K. S. · 1 citation
#Computational Physics (physics.comp-ph) #FOS: Physical sciences #Optics (physics.optics)
paper · doi:10.48550/arxiv.2103.06537
A modification of the saddle point method is proposed for computation of non-stationary wave processes (pulses) in waveguides. The dispersion diagram of the waveguide is continued analytically. A set of possible saddle points on the dispersion diagram is introduced. A method of checking whether the particular saddle points contribute terms to the field decomposition is proposed. A classification of the waveguides based on the topology of the set of possible saddle points is outlined.