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Article | REF: NM2060 V1

Metal-optic nanosources

Authors: Renaud BACHELOT, Jérôme PLAIN

Publication date: October 10, 2012

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2. Metal nanosources: principles and generalities

2.1 Evanescent nature of optical nanosources

Fourier theory of diffraction states that an optical wave is said to be evanescent in one direction, if the object exhibits spatial frequencies greater than 2n/λ in the plane perpendicular to that direction. More precisely, consider figure

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Metal nanosources: principles and generalities
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