Sensor device including one or more metal-dielectric optical filters
First Claim
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1. An optical filter comprising:
- a plurality of dielectric layers;
a plurality of metal layers stacked in alternation with the plurality of dielectric layers, whereineach of the plurality of dielectric layers has a tapered edge at a periphery of the optical filter,each of the plurality of metal layers is encapsulated by one or more of the plurality of dielectric layers, andeach of the plurality of metal layers is separated from a substrate of the optical filter using at least one of the plurality of dielectric layers; and
one or more corrosion-suppressing layers substantially encapsulating a metal layer of the plurality of metal layers.
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Abstract
A sensor device including one or more sensor elements and one or more optical filters is provided. The one or more optical filters each include a plurality of dielectric layers and a plurality of metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.
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Citations
20 Claims
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1. An optical filter comprising:
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a plurality of dielectric layers; a plurality of metal layers stacked in alternation with the plurality of dielectric layers, wherein each of the plurality of dielectric layers has a tapered edge at a periphery of the optical filter, each of the plurality of metal layers is encapsulated by one or more of the plurality of dielectric layers, and each of the plurality of metal layers is separated from a substrate of the optical filter using at least one of the plurality of dielectric layers; and one or more corrosion-suppressing layers substantially encapsulating a metal layer of the plurality of metal layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification