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Quadrupole second-harmonic generation for a focused beam of arbitrary transverse structure and polarization
Optics Letters
|August 25, 2009
Abstract:
The theory of second-harmonic generation (SHG) that is due to quadrupole and magnetic-dipole second-order optical susceptibilities is developed for monochromatic, focused beams of arbitrary transverse mode structure and polarization character. The strength of SHG depends sensitively on the polarization character of the beam.
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