Broadband wire grid polarizer for the visible spectrum

Details Broadband wire grid polarizer for the visible spectrum Broadband wire grid polarizer for the visible spectrum

G - Physics

02

B

G02B 5/30 (2006.01) G02B 5/18 (2006.01) G02B 27/28 (2006.01)

Patent

CA 2375522

A broadband wire grid polarizer (400) for the visible spectrum has a plurality of elongated elements (1240) supported on a substrate (1210). A region (1250) having a lower refractive index than the refractive index of the substrate is disposed between the elements and the substrate to reduce the longest wavelength at which resonance occurs.

L'invention concerne un polariseur (400) large bande du type à grille de fils utilisé dans la partie visible du spectre électromagnétique, comprenant une pluralité d'éléments allongés (1240) supportés par un substrat (1210). Une région possédant un indice de réfraction plus petit que celui dudit substrat est disposée entre les éléments et le substrat, afin de réduire la longueur d'onde la plus grande à laquelle se produit une résonance.

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