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Electromagnetic wave detector with an optical coupling surface comprising lamellar patterns
Electromagnetic wave detector with an optical coupling surface comprising lamellar patterns
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机译：具有包括层状图案的光耦合表面的电磁波检测器
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摘要
The invention relates to a detector comprising a multiple quantum well structure operating on interband or intersubband transitions by absorption of radiation having a wavelength λ having a polarization comprising a component perpendicular to the plane of the multiple quantum well structure, and comprising optical coupling means for coupling said radiation, wherein the coupling means comprise a set of first diffractive lamellar features that are distributed along at least a first direction and a set of second diffractive lamellar features that are distributed along at least a second direction, said first and second directions being mutually perpendicular and lying in a plane parallel to the plane of the multiple quantum well structure.
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