Method and system for spectroscopy
AssigneeAriel Scientific Innovations Ltd.
InventorsShmuel Sternklar, Ziv Glasser
Life of this patent
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Abstract
A method of spectroscopy, comprises: transmitting output radiation to a sample; collecting from the sample input radiation being indicative of interaction between the output radiation and the sample; modulating at least one of the output radiation and the input radiation, wherein at least one of the output radiation and the modulation is characterized by a scanned parameter; combining the input radiation, following the modulation, with a reference signal to provide a combined signal; processing the combined signal to construct a vector describing a dependence of a radiation property of the input radiation on the parameter; and at least partially identifying the sample or a change in comprises sample based on at least the vector.
Claims20
A method of spectroscopy, comprising:
- transmitting output radiation to a sample;
- collecting from the sample input radiation being indicative of interaction between said output radiation and said sample, following propagation of said input radiation in a medium;
- modulating at least one of said output radiation and said input radiation, said modulation being characterized by a scanned modulation frequency;
- processing said input radiation, following said modulation, to construct a dataset describing a dependence of a radiation property of said input radiation on said modulation frequency;
- at least partially identifying said sample or a change in said sample based on at least said dataset and medium-specific functional dependences of amplitudes and phases on said modulation frequency and a carrier frequency of said input radiation.
A method of analyzing a spectrum of a radiation source transmitting output radiation, comprising:
- collecting input radiation being indicative of the transmitted output radiation;
- modulating at least one of said output radiation and said input radiation, wherein at least one of said output radiation and said modulation is characterized by a scanned modulation parameter;
- combining said input radiation, following said modulation, with a reference signal to provide a combined signal;
- processing said combined signal to construct a dataset describing a dependence of a radiation property of said input radiation on said parameter;
- and
- reconstructing a spectrum of said input radiation based on at least said dataset.
A spectroscopy system, comprising:
- a radiation probe configured for transmitting output radiation to a sample and collecting input radiation from the sample, said input radiation being indicative of interaction between said output radiation and said sample;
- a modulator configured for modulating at least one of said output radiation and said input radiation, wherein said modulation is characterized by a discrete set of modulation frequencies;
- a signal processing system configured for processing said input radiation, following said modulation, to construct a dataset describing a dependence of a radiation property of said input radiation on said discrete set of modulation frequencies;
- and
- a data processor configured for constructing, based on said processed combined signal, a dataset describing a dependence of a radiation property of said processed input radiation on said parameter, and determining changes in at least one property of said sample based on at least said vector, in a frequency domain and without transforming said vector to a time-domain.
Dependencies are inferred from the claim text.