Photonic crystal system and method of controlling/detecting direction of radiation propagation using photonic crystal system
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlexandre M. Bratkovski, Shih-Yuan Wang
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Abstract
A photonic crystal system and a method for controlling the direction of radiation propagation are disclosed. The photonic crystal system includes a photonic crystal and a deformation source positioned to deform the photonic crystal. The photonic crystal system optionally includes a radiation source that emits radiation at a frequency within a frequency range over which the photonic crystal exhibits a negative index of refraction.
Claims32
A sensor, comprising:
- a photonic crystal having a negative index of refraction over a frequency range of radiation incident on the photonic crystal;
- a non-piezoelectric deformation source comprising a substrate positioned in contact with the photonic crystal, wherein the substrate is comprised of a material that deforms when exposed to a stimulus so as to deform the photonic crystal;
- and
- a detector positioned to collect radiation from the photonic crystal to sense exposure of the deformation source to the stimulus.
A photonic crystal system, comprising:
- a photonic crystal having a negative index of refraction over a frequency range of radiation incident on the photonic crystal;
- and
- a non-piezoelectric deformation source comprising a substrate including a first surface positioned in contact with the photonic crystal and a second surface exposed to an external environment, wherein the substrate is comprised of a material that deforms when exposed to a stimulus present in the external environment so as to deform the photonic crystal.
A method for controlling the direction of radiation propagation, comprising:
- irradiating a photonic crystal with radiation within a frequency range over which the photonic crystal has a negative index of refraction;
- simultaneously deforming the photonic crystal via a non-piezoelectric deformation source comprising a substrate positioned in contact with the photonic crystal, wherein the substrate is comprised of a material that is deformed by exposure to a stimulus so as to deform the photonic crystal;
- and
- collecting radiation from the photonic crystal with a detector to sense exposure of the deformation source to the stimulus.
A method for controlling the direction of radiation propagation, comprising:
- irradiating a photonic crystal with radiation within a frequency range over which the photonic crystal has a negative index of refraction;
- and
- simultaneously deforming the photonic crystal via a non-piezoelectric deformation source comprising a substrate including a first surface positioned in contact with the photonic crystal and a second surface exposed to an external environment, wherein the substrate is comprised of a material that is deformed when exposed to a stimulus present in the external environment so as to deform the photonic crystal.
Dependencies are inferred from the claim text.