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Photonic crystal biosensor structure and fabrication method

  • US 20070009380A1
  • Filed: 07/08/2005
  • Published: 01/11/2007
  • Est. Priority Date: 07/08/2005
  • Status: Active Grant
First Claim
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1. A sensor comprising a nanoporous material, having a low refractive index, supported on a bottom surface by a substrate, and coated on a top surface with a high dielectric constant dielectric coating;

  • wherein, the high dielectric constant dielectric coating or the high dielectric constant dielectric coating in combination with the nanoporous material form a sub-wavelength period grating structure;

    wherein, when the sensor is illuminated a resonant grating effect is produced on a reflected radiation spectrum; and

    wherein the depth and period of the sub-wavelength period grating structure are less than the wavelength of the resonant grating effect.

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