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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 8 — Mar. 10, 2012
  • pp: 1049–1060

Compact infrared cryogenic wafer-level camera: design and experimental validation

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Gilles Lasfargues, Manuel Fendler, Nicolas Lhermet, and Jean Taboury  »View Author Affiliations


Applied Optics, Vol. 51, Issue 8, pp. 1049-1060 (2012)
http://dx.doi.org/10.1364/AO.51.001049


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Abstract

We present a compact infrared cryogenic multichannel camera with a wide field of view equal to 120°. By merging the optics with the detector, the concept is compatible with both cryogenic constraints and wafer-level fabrication. The design strategy of such a camera is described, as well as its fabrication and integration process. Its characterization has been carried out in terms of the modulation transfer function and the noise equivalent temperature difference (NETD). The optical system is limited by the diffraction. By cooling the optics, we achieve a very low NETD equal to 15 mK compared with traditional infrared cameras. A postprocessing algorithm that aims at reconstructing a well-sampled image from the set of undersampled raw subimages produced by the camera is proposed and validated on experimental images.

© 2012 Optical Society of America

OCIS Codes
(080.2730) Geometric optics : Matrix methods in paraxial optics
(110.3080) Imaging systems : Infrared imaging
(110.4190) Imaging systems : Multiple imaging
(220.4830) Optical design and fabrication : Systems design
(350.3950) Other areas of optics : Micro-optics
(110.4155) Imaging systems : Multiframe image processing

ToC Category:
Imaging Systems

History
Original Manuscript: November 23, 2011
Manuscript Accepted: January 9, 2012
Published: March 5, 2012

Citation
Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Gilles Lasfargues, Manuel Fendler, Nicolas Lhermet, and Jean Taboury, "Compact infrared cryogenic wafer-level camera: design and experimental validation," Appl. Opt. 51, 1049-1060 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-8-1049

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