Integrated tunable optical sensor (ITOS) system
First Claim
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1. A scanning tunable detection system for analyzing a sample, comprising:
- a source of time varying excitation signals;
diffractive optics for dividing a beam from said source of time varying excitation signal into a plurality of discrete excitation light beams which irradiate a plurality of locations on said sample;
a tunable optical filter for selectively transmitting time-varying optical signals emanated from said sample following irradiation with said time varying excitation signals, and a detector array including a plurality of pixels for receiving a plurality of said time-varying optical signals emanated from said locations on said sample, said detector array for converting said plurality of time-varying optical signals to electrical detection signals.
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Abstract
A scanning tunable detection system and related method for analyzing samples includes a source of time varying excitation signals and a tunable optical filter for selectively transmitting time-varying optical signals emanated from a sample following irradiation with the time varying excitation signals. A detector is provided for converting the time-varying optical signals to electrical detection signals. The system can identify components in a sample using phase sensitive or time sensitive detection. A slew scan mode can be used to permit slow scanning through spectral regions rich in information but quickly in regions without such information.
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Citations
25 Claims
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1. A scanning tunable detection system for analyzing a sample, comprising:
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a source of time varying excitation signals;
diffractive optics for dividing a beam from said source of time varying excitation signal into a plurality of discrete excitation light beams which irradiate a plurality of locations on said sample;
a tunable optical filter for selectively transmitting time-varying optical signals emanated from said sample following irradiation with said time varying excitation signals, and a detector array including a plurality of pixels for receiving a plurality of said time-varying optical signals emanated from said locations on said sample, said detector array for converting said plurality of time-varying optical signals to electrical detection signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for identifying at least one component in a sample, comprising the steps of:
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providing a source of time-varying radiation;
irradiating said sample with said time-varying radiation, wherein a time-varying optical signal emanates from said sample, wherein said time-varying source provides a modulated frequency output, further comprising the step of synchronizing demodulation of said time-varying electrical signals with said modulated frequency;
converting said time-varying optical signals to electrical detection signals, and processing said electrical detection signals to provide time-varying measurements relating to said sample. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for identifying at least one component in a sample, comprising the steps of:
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providing a source of time-varying radiation;
irradiating said sample with said time-varying radiation, wherein a time-varying optical signal emanates from said sample, wherein said irradiation step comprises slew scanning;
converting said time-varying optical signals to electrical detection signals, and processing said electrical detection signals to provide time-varying measurements relating to said sample.
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Specification