Title :
Discrete Bessel-based Arnoldi method for nonparaxial wave propagation
Author :
Luo, Q. ; Law, C.T.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Wisconsin-Milwaukee, Milwaukee, WI, USA
Abstract :
A discrete Bessel transform has been applied to the modified Arnoldi method to investigate propagation of cylindrical beams in both free space and a graded index waveguide. We compare the method to the Lanczos method and show its superb performance in modeling small beams with high resolution.
Keywords :
Bessel functions; discrete transforms; gradient index optics; light propagation; optical waveguide theory; Lanczos method; cylindrical beams; discrete Bessel transform; discrete Bessel-based Arnoldi method; free space; graded index waveguide; high resolution; modified Arnoldi method; nonparaxial wave propagation; small beam modeling; Acceleration; Diffraction; Discrete transforms; Fast Fourier transforms; Laplace equations; Nonhomogeneous media; Nonuniform electric fields; Optical propagation; Optical waveguides; Particle beams;
Journal_Title :
Photonics Technology Letters, IEEE
