TERAHERTZ DISPERSIVE SPECTROMETER SYSTEM
First Claim
1. A spectrographic system comprising:
- a slit aperturea dispersive element in an optical path from the slit aperture;
one or more detectors in an optical path from the dispersive element; and
optics as needed situated in the optical paths; and
wherein the one or more detectors comprise uncooled THz-sensitive sensors.
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Accused Products
Abstract
A spectrometer system for providing information about a target with terahertz radiation. The system may receive incident radiation from the target through fore optics, a slit aperture, secondary optics and a dispersive element which images a slit on an array of terahertz sensitive detectors. The detectors may include uncooled sensors. Each sensor may be connected to its own micro antenna. The array of detectors may be situated proximate to the dispersive element so that radiation from the element may be dispersed according to wavelength to the respective detectors optimally sensitive to the various respective wavelengths. Detector signals indicating the impingement of terahertz radiation may provide information for identifying a material of the target.
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Citations
20 Claims
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1. A spectrographic system comprising:
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a slit aperture a dispersive element in an optical path from the slit aperture; one or more detectors in an optical path from the dispersive element; and optics as needed situated in the optical paths; and wherein the one or more detectors comprise uncooled THz-sensitive sensors. - View Dependent Claims (2, 3, 4, 5)
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6. A dispersive spectrometer system comprising:
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a dispersive element; a mechanism for conveying incident radiation to the dispersive element; and one or more detectors for sensing radiation from the dispersive element; and wherein the radiation is in the THz range. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A spectroscopic method comprising:
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receiving THz radiation through a slit; dispersing the radiation from the slit according to wavelength; and selecting one or more detectors that have optimum sensitivity in a spectral range as defined by the dispersing the radiation according to wavelength; and wherein the one or more detectors comprise an uncooled sensor. - View Dependent Claims (17, 18, 19, 20)
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Specification