Thermally emissive sensing materials for chemical spectroscopy analysis
AssigneeU.S. Department of Energy
InventorsZsolt Poole, Paul R. Ohodnicki
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Abstract
A sensor using thermally emissive materials for chemical spectroscopy analysis includes an emissive material, wherein the emissive material includes the thermally emissive materials which emit electromagnetic radiation, wherein the electromagnetic radiation is modified due to chemical composition in an environment; and a detector adapted to detect the electromagnetic radiation, wherein the electromagnetic radiation is indicative of the chemical interaction changes and hence chemical composition and/or chemical composition changes of the environment. The emissive material can be utilized with an optical fiber sensor, with the optical fiber sensor operating without the emissive material probed with a light source external to the material.
Claims16
An optical fiber sensor utilizing thermally emissive materials for chemical spectroscopy analysis, the sensor comprising:
- an emissive material, wherein the emissive material comprises the thermally emissive materials comprising one of TiO2, Pd—TiO2, and Au—TiO2 nanocomposites, with varied properties comprising high conductivity, hydrogen absorptivity, and localized surface plasmon resonance (LSPR) based activity in nitrogen and in oxygen containing high-temperature environments, perovskite oxide, strontium titanate (SrTiO3) or doped SrTiO3, one of which emit electromagnetic radiation, wherein the electromagnetic radiation is modified due to chemical composition in an environment;
- the optical fiber sensor comprising a distributed optical fiber sensor with a plurality of emissive materials each operating at different wavelengths, the optical fiber operating without the emissive material probed with a light source external to the material;
- and
- a detector adapted to detect the electromagnetic radiation, wherein the electromagnetic radiation is indicative of the chemical interaction changes and hence chemical composition and/or chemical composition changes of the environment.
A method for chemical spectroscopy analysis with a sensor using thermally emissive materials, the method comprising:
- emitting radiation by the thermally emissive materials responsive to thermal energy which is altered based on chemical interaction changes in an environment, the thermally emissive materials comprising one of TiO2, Pd—TiO2, and Au—TiO2 nanocomposites, with varied properties comprising high conductivity, hydrogen absorptivity, and localized surface plasmon resonance (LSPR) based activity in nitrogen and in oxygen containing high-temperature environments, perovskite oxide, strontium titanate (SrTiO3) or doped SrTiO3;
- and
- operating an optical fiber without the emissive material probed with a light source external to the material, the optical fiber sensor comprising a distributed optical fiber sensor with a plurality of emissive materials each operating at different wavelengths;
- and
- detecting the radiation using a detector, wherein the electromagnetic radiation is indicative of the chemical interaction changes and hence chemical composition and/or chemical composition changes of the environment.
An optical fiber sensor using thermally emissive materials for chemical spectroscopy analysis, the sensor comprising:
- an emissive material, wherein the emissive material comprises the thermally emissive materials comprising one of TiO2, Pd—TiO2, and Au—TiO2 nanocomposites, with varied properties comprising high conductivity, hydrogen absorptivity, and localized surface plasmon resonance (LSPR) based activity in nitrogen and in oxygen containing high-temperature environments, perovskite oxide, strontium titanate (SrTiO3) or doped SrTiO3, one of which emit electromagnetic radiation, wherein the electromagnetic radiation is modified due to chemical composition in an environment;
- the optical fiber sensor comprises a bundled fiber with a plurality of optical fibers therein with the emissive material to provide distributed sensing,
- the optical fiber operating without the emissive material probed with a light source external to the material;
- and
- a detector adapted to detect the electromagnetic radiation, wherein the electromagnetic radiation is indicative of the chemical interaction changes and hence chemical composition and/or chemical composition changes of the environment.
Dependencies are inferred from the claim text.