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Applied Physics Letters / Volume 96 / Issue 22 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 96, 221104 (2010); http://dx.doi.org/10.1063/1.3442487 (3 pages)

Free-standing subwavelength metallic gratings for snapshot multispectral imaging

Riad Haïdar1, Grégory Vincent1,2, Stéphane Collin2, Nathalie Bardou2, Nicolas Guérineau1, Joël Deschamps1, and Jean-Luc Pelouard2

1ONERA, The French Aerospace Lab, Chemin de la Hunière, 91761 Palaiseau Cedex, France
2Laboratoire de Photonique et de Nanostructures (LPN-CNRS), Route de Nozay, 91460 Marcoussis, France

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(Received 25 March 2010; accepted 10 May 2010; published online 2 June 2010)

A mosaic of ten spectral filters has been fabricated in a single 20 mm2 membrane drilled by nanoslits and coated by a gold layer. The nanostructured core-shell gratings exhibit 70% average maximum transmission efficiency in 15% aperture area, which represents a fivefold enhancement compared to the geometrical transmission. This mosaic of bandpass filters regularly spaced in the 3–5 μm wavelength range is used to demonstrate real-time spectral imaging in a multichannel camera.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

band-pass filters, cameras, diffraction gratings, drilling, imaging, optical fabrication, optical filters

PACS

  • 42.79.Ls

    Scanners, image intensifiers, and image converters

  • 42.79.Dj

    Gratings

  • 42.79.Ci

    Filters, zone plates, and polarizers

  • 42.86.+b

    Optical workshop techniques

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3442487

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    J. A. Porto, F. J. García-Vidal, and J. B. Pendry, Phys. Rev. Lett. 83, 2845 (1999).

    F. J. García-Vidal and L. Martín-Moreno, Phys. Rev. B 66, 155412 (2002).

    S. Collin, F. Pardo, R. Teissier, and J. -L. Pelouard, Phys. Rev. B 63, 033107 (2001).

    R. Gómez-Medina and J. J. Sáenz, Phys. Rev. Lett. 93, 243602 (2004).

    S. Collin, G. Vincent, R. Haïdar, N. Bardou, S. Rommeluère, and J. -L. Pelouard, Phys. Rev. Lett. 104, 027401 (2010).

    P. Sheng, R. S. Stepleman, and P. N. Sanda, Phys. Rev. B 26, 2907 (1982).


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