Broad band waveguide spectrometer
First Claim
1. A spectrometer for analyzing a sample of material by utilization of an electromagnetic radiation source and a detectorcomprising:
- a. a waveguide possessing an entry for admission of electromagnetic radiation from the source and an exit for the electromagnetic radiation emanating from the source, said waveguide further including a surface between said entry and exit portions, permitting interaction between electromagnetic radiation passing through said waveguide and a sample of material, said waveguide exit permitting electromagnetic radiation from the waveguide to pass from said waveguide;
b. a tapered portion forming a part of said entry of said waveguide, said tapered portion coupling electromagnetic radiation emanating from the source to said waveguide;
c. a substrate adjacent said waveguide, said substrate being capable of passing electromagnetic radiation from the source to said tapered portion forming part of said waveguide entry; and
d. capturing means for directing electromagnetic radiation passing from said exit of said waveguide to a detector.
1 Assignment
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Accused Products
Abstract
A spectrometer for analyzing a sample of material utilizing a broad band source of electromagnetic radiation and a detector. The spectrometer employs a waveguide possessing an entry and an exit for the electromagnetic radiation emanating from the source. The waveguide further includes a surface between the entry and exit portions which permits interaction between the electromagnetic radiation passing through the wave guide and a sample material. A tapered portion forms a part of the entry of the wave guide and couples the electromagnetic radiation emanating from the source to the waveguide. The electromagnetic radiation passing from the exit of the waveguide is captured and directed to a detector for analysis.
106 Citations
22 Claims
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1. A spectrometer for analyzing a sample of material by utilization of an electromagnetic radiation source and a detector
comprising: -
a. a waveguide possessing an entry for admission of electromagnetic radiation from the source and an exit for the electromagnetic radiation emanating from the source, said waveguide further including a surface between said entry and exit portions, permitting interaction between electromagnetic radiation passing through said waveguide and a sample of material, said waveguide exit permitting electromagnetic radiation from the waveguide to pass from said waveguide; b. a tapered portion forming a part of said entry of said waveguide, said tapered portion coupling electromagnetic radiation emanating from the source to said waveguide; c. a substrate adjacent said waveguide, said substrate being capable of passing electromagnetic radiation from the source to said tapered portion forming part of said waveguide entry; and d. capturing means for directing electromagnetic radiation passing from said exit of said waveguide to a detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A spectrometer for analyzing a sample of material by utilization of an electromagnetic radiation source and a detector
comprising: -
a. a waveguide possessing an entry for admission of electromagnetic radiation from the source and an exit for the electromagnetic radiation emanating from the source, said waveguide further including a surface between said entry and exit portions, permitting interaction between electromagnetic radiation passing through said waveguide and a sample of material, said waveguide exit permitting electromagnetic radiation from the waveguide to pass from said waveguide; b. a tapered portion comprising a curved body, said tapered portion forming a part of said entry of said waveguide, said tapered portion coupling electromagnetic radiation emanating from the source to said waveguide; and c. capturing means for directing electromagnetic radiation passing from said exit of said waveguide to a detector.
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17. A spectrometer for analyzing a sample of material utilizing an electromagnetic radiation source and a detector,
comprising: -
a. a waveguide possessing an entry and an exit for the electromagnetic radiation emanating from the source, said waveguide further including a material of a certain refractive index having a surface, between said entry and exit portions, permitting interaction between electromagnetic radiation passing through said waveguide and a sample of material, said waveguide exit permitting electromagnetic radiation in the waveguide to pass from said waveguide; b. a tapered portion forming at least a part of said entry of said waveguide, said tapered portion coupling electromagnetic radiation emanating from the source to said waveguide; c. a coating on a portion of said waveguide surface of said waveguide of sufficient thickness to measurably reduce interaction of the electromagnetic radiation with the sample, said coating including a material possessing a lower refractive index than the material included in said waveguide; and d. capturing means for directing electromagnetic radiation that has interacted with the sample, passing from said exit of said waveguide to a detector. - View Dependent Claims (18, 19, 20)
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21. A spectrometer for analyzing a sample of material utilizing an electromagnetic radiation source and a detector,
comprising: -
a. a waveguide possessing an entry and an exit for the electromagnetic radiation emanating from the source, said waveguide further including a surface between said entry and exit portions, permitting interaction between electromagnetic radiation passing through said waveguide and a sample of material, said waveguide exit permitting electromagnetic radiation in the waveguide to pass from said waveguide; b. a tapered portion forming at least a part of said entry of said waveguide, said tapered portion coupling electromagnetic radiation emanating from the source to said waveguide; c. a coating on a portion of said waveguide surface of said waveguide of sufficient thickness to measurably reduce interaction of the electromagnetic radiation with the sample, said coating including at least a first portion and a second portion, said first portion of said coating possessing a thickness less than said second portion of said coating; and d. capturing means for directing electromagnetic radiation that has interacted with the sample, passing from said exit of said waveguide to a detector. - View Dependent Claims (22)
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Specification