Method and apparatus for compact birefringent interference imaging spectrometer
First Claim
1. A portable system for obtaining a spectrum of a sample, comprising:
- an optical lens for collecting a plurality of photons scattered by the sample upon illumination;
a rejection filter for blocking the first plurality of photons from entering a first filter, the first filter receiving the collected scattered photons and providing therefrom filtered photons; and
a first photon detector for receiving the filtered photons and obtaining therefrom a spectrum of the sample.
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Accused Products
Abstract
The disclosure relates to a method and apparatus for a compact birefringent interference imaging spectrometer. More specifically, the disclosure relates to a portable system for obtaining a spectrum of a sample. The portable system may include a first photon emission source for illuminating the sample with a first plurality of photons to thereby produce photons scattered by the sample; an optical lens for collecting the scattered photons; a filter for receiving the collected scattered photons and providing therefrom filtered photons; a first photon detector for receiving the filtered photons and obtaining therefrom a spectrum of the sample; and a rejection filter for blocking the photons from said first photon emission source from entering said first photon detector. The disclosure additionally relates to methods of using such portable systems.
66 Citations
62 Claims
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1. A portable system for obtaining a spectrum of a sample, comprising:
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an optical lens for collecting a plurality of photons scattered by the sample upon illumination; a rejection filter for blocking the first plurality of photons from entering a first filter, the first filter receiving the collected scattered photons and providing therefrom filtered photons; and a first photon detector for receiving the filtered photons and obtaining therefrom a spectrum of the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51)
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48. A method for obtaining a spectrum of a sample using a hand-held device, the method comprising the steps of:
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providing a sample; collecting photons scattered by the sample; blocking the first plurality of photons from entering a first filter; receiving the collected scattered photons with the first filter and providing therefrom filtered photons; and receiving the filtered photons with a first photon detector and obtaining therefrom a spectrum of the sample.
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52. A portable system for obtaining a spectrum of a sample, comprising:
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an optical lens for collecting a first plurality of photons reflected by the sample; a rejection filter for blocking the first plurality of photons from entering a first filter; said first filter for receiving the collected reflected photons and providing therefrom filtered photons; and a first photon detector for receiving the filtered photons and obtaining therefrom a spectrum of the sample. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59)
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60. A method for obtaining plural spectra of a sample using a hand-held device, comprising the steps of:
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providing a sample; collecting a first plurality of scattered photons and a second plurality of emitted photons from the sample; separating the scattered and the emitted photons each having a first polarization from the scattered and the emitted photons each having a second polarization using the polarization beam splitter; forming a first spectrum of the sample from the scattered and the emitted photons each having a first polarization; and forming a second spectrum of the sample from the scattered and the emitted photons each having a second polarization. - View Dependent Claims (61, 62)
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Specification