Electromagnetic wave detector with an optical coupling...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit

Reexamination Certificate

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C250S216000, C257S021000, C257S431000, C257S432000, C257S441000, C257S442000

Reexamination Certificate

active

07741594

ABSTRACT:
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.

REFERENCES:
patent: 5086327 (1992-02-01), Rosencher et al.
patent: 5187715 (1993-02-01), Weisbuch et al.
patent: 5228777 (1993-07-01), Rosencher et al.
patent: 5326984 (1994-07-01), Rosencher et al.
patent: 5506418 (1996-04-01), Bols et al.
patent: 5539206 (1996-07-01), Schimert
patent: 5677544 (1997-10-01), Duboz et al.
patent: 5712499 (1998-01-01), Duboz et al.
patent: 5719670 (1998-02-01), Duboz et al.
patent: 5726500 (1998-03-01), Duboz et al.
patent: 5773831 (1998-06-01), Brouns
patent: 5869844 (1999-02-01), Rosencher et al.
patent: 6091126 (2000-07-01), Costard et al.
patent: 6157020 (2000-12-01), Krapf et al.
patent: 6180990 (2001-01-01), Claiborne et al.
patent: 6452187 (2002-09-01), Claiborne et al.
patent: 6521894 (2003-02-01), Iwanczyk et al.
patent: 6521967 (2003-02-01), Bandara et al.
patent: 6534758 (2003-03-01), Costard et al.
patent: 6627868 (2003-09-01), Bois et al.
patent: 6797938 (2004-09-01), Bois et al.
patent: 6809350 (2004-10-01), Berger et al.
patent: 6828642 (2004-12-01), Claiborne et al.
patent: 6920290 (2005-07-01), Mitra
patent: 7135698 (2006-11-01), Mitra
patent: 2003/0136909 (2003-07-01), Plante
patent: 2006/0243892 (2006-11-01), Bois et al.
patent: 0 866 504 (1998-09-01), None
Beck W et al: Proceedings of the fifth international symposium on long wavelength infrared detectors and arrays; physics and applications; Paris, France Aug. 31, 1997, pp. 48-62.
Beekman D W et al: “Polarization sensitive OWIP thermal imager” QWIP 2000 Workshop on Quantum well Infrared Photodetectors, Dana Point, CA Jul. 27-29, 2000 pp. 323-238.
Cardimona D A et al: “Investigation of a concentric-ring grating coupler for normal-incidence absorption in quantum-well infrared photodetectors” Extended Abstracts, Electrochemical Society Princeton, NJ p. 217.
Chen E et al: “A Novel Device for Detecting the polarization direction of linear polarized light using integrated subwavelength gratings and photodectors” IEEE Photonics Technology Letters, IEEE NY, USA Sep. 1, 1997 pp. 1259-1261.
Goossen, K. W. and S. A. Lyon, “Grating Enhanced Quantum Well Detector”, Princeton University, Department of Electrical Engineering, Princeton, New Jersey 08544, Appl. Phys. Lett. 47 (12), Dec. 15, 1985, pp. 1257-1259.
Petit, R. “Electromagnetic Theory of Gratings”, Springer (Dec. 1980)( Book).

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