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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 17 — Aug. 15, 2011
  • pp: 15720–15731

High rejection bandpass optical filters based on sub-wavelength metal patch arrays

J. Le Perchec, R. Espiau de Lamaestre, M. Brun, N. Rochat, O. Gravrand, G. Badano, J. Hazart, and S. Nicoletti  »View Author Affiliations

Optics Express, Vol. 19, Issue 17, pp. 15720-15731 (2011)

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We report the study of a resonant bandpass filter made of a very thin subwavelength metal patch array coupled to a high index dielectric waveguide. The spectral properties of those filters can easily be tuned by playing on the lateral dimensions of the grating. They exhibit high and narrow transmission peaks together with very good rejection of light out of the pass-band and low angular dependance. An experimental demonstration using standard large scale silicon microelectronics processes is presented in the mid infrared spectral range. This concept of filters can easily be scaled throughout the optical spectrum, and can be integrated within focal plane arrays of various imaging technologies, down to visible wavelengths.

© 2011 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(110.3080) Imaging systems : Infrared imaging
(120.7000) Instrumentation, measurement, and metrology : Transmission
(240.6690) Optics at surfaces : Surface waves
(310.1860) Thin films : Deposition and fabrication
(310.6860) Thin films : Thin films, optical properties
(350.2460) Other areas of optics : Filters, interference
(310.4165) Thin films : Multilayer design
(220.4241) Optical design and fabrication : Nanostructure fabrication
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Thin Films

Original Manuscript: April 4, 2011
Revised Manuscript: May 12, 2011
Manuscript Accepted: May 16, 2011
Published: August 2, 2011

J. Le Perchec, R. Espiau de Lamaestre, M. Brun, N. Rochat, O. Gravrand, G. Badano, J. Hazart, and S. Nicoletti, "High rejection bandpass optical filters based on sub-wavelength metal patch arrays," Opt. Express 19, 15720-15731 (2011)

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