Numerical study of scattered electromagnetic field inside a hollow dielectric cylinder. 2: Scattering of two phasematched beams.
The structure of the scattered field inside a hollow lossless dielectric cylinder in the case of two incident TM waves has been discussed. Results are given for the case of opposite directions of incidence, under positive and negative phase-matched conditions of two beams of equal amplitude. It has been shown that so far as high irradiance over a small region is concerned, the effective gain is less than that of the case of a single incident beam. However, the advantage here is the symmetry of the field distribution.
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