Planar-resonator based optical chemo- and biosensor
First Claim
1. A sensor comprising:
- a) a substrate with a first refraction index;
b) a planar waveguide formed on the substrate and having a second refractive index larger than the first index, the waveguide including a light emitting material and at least one linear micro-resonator structure on a waveguide surface opposite to the substrate, the micro-resonator structure operative to output a light signal that includes a spectral response to an interaction between a target substance and the micro-resonator, the light being emitted upon optical pumping of the light emitting material.
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Accused Products
Abstract
A biological or chemical optical sensing device comprises at least one planar micro-resonator structure included in a light emitting waveguide, and at least one biological or chemical probe bound to at least a part of the micro-resonator structure, the probe operative to bind specifically and selectively to a respective target substance, whereby the specific and selective binding results in a parameter change in light emitted from the waveguide. In one embodiment, the micro-resonator is linear. In some embodiments, the sensing device is active, the waveguide including at least one photoluminescent material operative to be remotely pumped by a remote optical source, and the parameter change, which may include a spectral change or a quality-factor change, may be remotely read by an optical reader.
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Citations
33 Claims
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1. A sensor comprising:
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a) a substrate with a first refraction index; b) a planar waveguide formed on the substrate and having a second refractive index larger than the first index, the waveguide including a light emitting material and at least one linear micro-resonator structure on a waveguide surface opposite to the substrate, the micro-resonator structure operative to output a light signal that includes a spectral response to an interaction between a target substance and the micro-resonator, the light being emitted upon optical pumping of the light emitting material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sensing device comprising:
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a) at least one linear planar micro-resonator structure included in a light emitting waveguide that incorporates a light emitting material; and b) at least one probe material bound to at least part of at least one micro- resonator structure, the probe material operative to bind specifically and selectively to a respective target substance, the specific and selective binding resulting in a parameter change in light emitted from the light emitting material upon optical pumping. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An optical sensing method for sensing remotely an interaction between a probe and a target substance, comprising the steps of:
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a) providing at least one linear micro-resonator formed in a planar sol-gel waveguide that includes a light emitting material, at least one of the micro-resonators having at least one probe bound to at least a micro-resonator surface part; b) promoting a specific and selective binding between the at least one probe and the target substance; c) remotely optically pumping the waveguide, thereby causing a parameter change in light emitted therefrom though at least part of the micro-resonator; and d) remotely reading the parameter change. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification