Fiber optic probe scatterometers for spectroscopy measurements
AssigneeThe Boeing Company
InventorStephen K. Wilcken
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Abstract
Fiber optic probe scatterometers for spectroscopy measurements are disclosed. An example device includes an optically transparent illumination tube, an opaque tube, an inner surface of the opaque tube being adjacent an outer surface of the illumination tube and the illumination tube being disposed within the opaque tube, and an optical fiber disposed within and spaced a first distance from the illumination tube, wherein the opaque tube is to be coupled to a spectrometer and an illumination source to provide a light signal along the illumination tube and to collect a scattered light signal via the optical fiber for the spectrometer.
Claims20
A device, comprising:
- an optically transparent illumination tube to provide a light signal to a sample;
- an opaque tube, an inner surface of the opaque tube being adjacent an outer surface of the illumination tube and the illumination tube being disposed within the opaque tube;
- an optical fiber disposed within and spaced a first distance from the illumination tube, the opaque tube to be coupled to a light detector and an illumination source to provide the light signal to the illumination tube, and the optical fiber to collect a scattered light signal for the light detector when the illumination tube provides the light signal;
- and
- an opaque layer disposed between the optically transparent illumination tube and the optical fiber.
A method, comprising:
- providing an interrogating light signal from an illumination source to a material sample via an optically transparent illumination tube, the illumination tube being disposed within an opaque tube such that an inner surface of the opaque tube is adjacent an outer surface of the illumination tube;
- collecting a scattered light signal from the material sample by at least one optical fiber, the at least one optical fiber being disposed within and spaced a first distance from the illumination tube, an opaque layer being disposed between the optical fiber and the illumination tube;
- and
- providing the scattered light signal to a light detector.
A method of determining a condition of a material sample, comprising:
- providing an optically transparent illumination tube to provide a light signal;
- providing an opaque tube, an inner surface of the opaque tube being adjacent an outer surface of the illumination tube and the illumination tube being disposed within the opaque tube;
- providing an optical fiber disposed within and spaced a first distance from the illumination tube, the opaque tube to be coupled to a light detector and an illumination source to provide the light signal to the illumination tube and the optical fiber to collect a scattered light signal via the optical fiber for the light detector;
- and
- providing an opaque layer disposed between the optically transparent illumination tube and the optical fiber.
Dependencies are inferred from the claim text.