The concept of a virtual source, introduced by Deschamps, has some novel features. The usual electromagnetic field theory is not valid in the region where the virtual source is located. The field generated by the virtual source in the complex space reproduces the field of a paraxial scalar fundamental Gaussian beam to within an amplitude term in the real space. This novel virtual point source is now introduced.
Origin of point current source in complex space, Page 1 of 2
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