Abstract

Numerical results are given for the backscattering cross section of a dielectric elliptical cylinder. Computations are carried out using the exact solutions in terms of Mathieu functions. Both polarizations of the incident wave are considered: one with the incident electric vector in the axial direction and the other with the incident magnetic vector in the axial direction. The parameters considered are: k02q2=0.004, 0.4, 4.0, 8.0, 12.0, 16.0, 20.0; 0≤qk0 cosξ0<6.5; 1/0=2.0; 0≤θ≤90°. k0 is the free-space wavenumber, q is the semifocal length, q cosξ0 is the length of the semimajor axis, θ is the angle of incidence with respect to the major axis, and 1/0 is the relative dielectric constant of the cylinder.

© 1965 Optical Society of America

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