Method for snapshot interferometric spectrometry
AssigneesIndustrial Cooperation Foundation Chonbuk National University, Board of Regents, The University of Texas System
InventorsDaesuk Kim, Robert Magnusson
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Abstract
A spectroscopic device is disclosed. The spectroscopic device can include a beam collimation structure with a white light source. The beam collimation structure can also include a lens configured to generate a collimated light beam. The spectroscopic device can also include a polarization modulation structure. The polarization modulation structure can convert the collimated light beam into a common path light beam. The common path light beam can include a delayed component and a polarized component. The spectroscopic device can include a dual spectrum sensing structure. The dual spectrum sensing structure can sense a normalized spectral Stokes vector in real time speed.
Claims8
A method for measuring spectral stokes vector of an object comprising:
- collimating a light emitted from a white light source in a beam collimation structure to generate a collimated light beam;
- receiving the collimated light beam in a polarization modulation structure, the collimated light beam having contacted an object;
- generating, via the polarization modulation structure, a common path light beam comprising a delayed component and a polarized component;
- receiving the common path light beam in a dual spectrum sensing structure;
- and
- capturing snapshots from an output of each of a first processing structure and a second processing structure in a dual spectrometer,
- wherein the polarization modulation structure comprises a first beam splitter, an optical delay structure, a polarizing structure, and a second beam splitter,
- wherein the first beam splitter and the second beam splitter are non-polarizing splitters;
- wherein the dual spectrum sensing structure comprises a beam splitter, the first processing structure, the second processing structure, and a dual spectrometer, and
- wherein the first processing structure comprises a first polarizer, a first parabolic mirror, and a first spectrometer fiber inlet coupled to the dual spectrometer, and the second processing structure comprises a second polarizer, a second parabolic mirror, and a second spectrometer fiber inlet coupled to the dual spectrometer.
Dependencies are inferred from the claim text.