Switch matrix including optically non-linear elements
First Claim
1. In a switch matrix composed of a plurality of optically non-linear elements disposed as optically active layers on a common substrate surface;
- the improvement wherein;
the substrate surface is a microstructure composed of a plurality of pillars with lateral spacings in a micron range; and
the optically active layers of the respective devices are applied to respective frontal faces of free pillar ends in a cross-sectional region of the pillars.
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Abstract
A switch matrix which comprises non-linear optical (e.g. bistable) elements each consisting of an optically active layer applied to a substrate. The surface of the substrate has a microstructure composed of pillars each of which functions as a switch element and has at least one optically active layer. The pillar structure prevents interaction due to thermal contact and diffusion of charge carriers across the optically active layer and the substrate. The lithographic-galvanic (LIGA) process described is suited to the mass production of these structured substrates my moulding plastics. Both transparent and opaque substrates with high aspect ratios and adequate stability can be advantageously manufactured in this way.
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Citations
12 Claims
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1. In a switch matrix composed of a plurality of optically non-linear elements disposed as optically active layers on a common substrate surface;
- the improvement wherein;
the substrate surface is a microstructure composed of a plurality of pillars with lateral spacings in a micron range; and
the optically active layers of the respective devices are applied to respective frontal faces of free pillar ends in a cross-sectional region of the pillars. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- the improvement wherein;
Specification