Grid polarizer with suppressed reflectivity
First Claim
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1. A grid polarizer comprising:
- a substrate; and
a plurality of stacked metal and dielectric or semiconductor layers, having a width w, disposed on the substrate and forming a parallel grid of stacked layers, the stacked layers spaced apart to form a repetition space between the stacked layers, Λ
, such that no diffraction orders are allowed to propagate except the zero order resulting in a grid polarizer that is capable of transmitting substantially all illumination of a given polarization while suppressing at least a portion of the illumination reflected due to an orthogonal polarization component;
wherein the repetition space, Λ
, satisfies the relation;
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Abstract
Disclosed is a grid polarizer comprising a substrate; and a plurality of stacked metal and dielectric layers, having a width w, disposed on the substrate and forming a parallel grid of stacked layers. The stacked layers are spaced apart to form a repetition space between the stacked layers, such that no diffraction orders are allowed to propagate except the zero order. The grid polarizer that is capable of transmitting substantially all illumination of a given polarization while suppressing at least of portion of the illumination reflected due to an orthogonal polarization component.
174 Citations
20 Claims
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1. A grid polarizer comprising:
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a substrate; and a plurality of stacked metal and dielectric or semiconductor layers, having a width w, disposed on the substrate and forming a parallel grid of stacked layers, the stacked layers spaced apart to form a repetition space between the stacked layers, Λ
, such that no diffraction orders are allowed to propagate except the zero order resulting in a grid polarizer that is capable of transmitting substantially all illumination of a given polarization while suppressing at least a portion of the illumination reflected due to an orthogonal polarization component;wherein the repetition space, Λ
, satisfies the relation; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A arid polarizer comprising:
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a substrate; and a plurality of stacked metal and dielectric or semiconductor layers, having a width w, disposed on the substrate and forming a parallel a-id of stacked layers, the stacked layers spaced apart to form a repetition space between the stacked layers, Λ
, such that no diffraction orders are allowed to propagate except the zero order resulting in a grid polarizer that is capable of transmitting substantially all illumination of a given polarization while suppressing at least a portion of the illumination reflected due to an orthogonal polarization component;wherein the repetition space, Λ
, satisfies the relation;
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20. A grid polarizer comprising:
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a substrate; and a plurality of stacked metal and semiconductor layers disposed on the substrate and forming a parallel grid of stacked layers, the grid of stacked layers having a repetition space between the stacked layers such that no diffraction orders are allowed to propagate except the zero order resulting in a grid polarizer that is capable of transmitting substantially all illumination of a given polarization while suppressing at least a portion of the illumination reflected due to an orthogonal polarization component; wherein the repetition space, Λ
, satisfies the relation;
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Specification