Improved beam-propagation method equations for the analysis of integrated-optics lenses.
The variations of the refractive index and the wavelength along the axis of an integrated-optics lens are taken into account in an improved set of equations of the beam-propagation method. It is shown that this implementation removes an inconsistency between the predictions of the standard beam-propagation method and those of geometrical optics.
Di Sebastiano
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Pozzi
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