Optronic window transparent to IR and reflecting RF
First Claim
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1. An optronic porthole comprising:
- a substrate with two faces, with on one of the faces of the substrate or on both faces, a stack of several hetero-structures, each hetero-structure being composed of at least two semi-conducting layers SC1, SC2, the layer SC1 being doped, the layer SC2 itself comprising a two-dimensional electron gas layer formed at the interface with the layer SC1, further comprising an electrode in contact with all the electron gas layers, a bi-periodic metallic grid buried in the stack, in contact with the electrode and the substrate and the layers are transparent in the 0.4 μ
m-5 μ
m band.
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Abstract
An optronic porthole comprises a substrate with two faces. It comprises on one of the faces of the substrate or on both faces, a stack of several hetero-structures, each hetero-structure being composed of at least two semi-conducting layers SC1, SC2, the layer SC1 being doped, the layer SC2 itself comprising a two-dimensional electron gas layer formed at the interface with the layer SC1. It furthermore comprises an electrode in contact with all the electron gas layers, a bi-periodic metallic grid buried in the stack, in contact with the electrode. The substrate and the layers are transparent in the 0.4 μm-5 μm band.
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Citations
10 Claims
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1. An optronic porthole comprising:
a substrate with two faces, with on one of the faces of the substrate or on both faces, a stack of several hetero-structures, each hetero-structure being composed of at least two semi-conducting layers SC1, SC2, the layer SC1 being doped, the layer SC2 itself comprising a two-dimensional electron gas layer formed at the interface with the layer SC1, further comprising an electrode in contact with all the electron gas layers, a bi-periodic metallic grid buried in the stack, in contact with the electrode and the substrate and the layers are transparent in the 0.4 μ
m-5 μ
m band.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
Specification