Method and apparatus for holographic spectrometry
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United States of America Patent
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Oct 25, 1988
Grant Date -
N/A
app pub date -
Feb 24, 1987
filing date -
Feb 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated optic holographic spectrometer (10) for analyzing electromagnetic radiation from a source (12) is disclosed. The holographic spectrometer (10) comprises a substrate (18) having aperture (20) for restricting the receipt of electromagnetic radiation. The spectrometer (10) also includes two optical waveguides (22, 24) for dividing the electromagnetic radiation received through the aperture (20) into at least a first and second portions. A geodesic lens (26) is provided for collimating the first and second portions of the electromagnetic radiation. Finally, the spectrometer (10) includes a linear detector array (28) optically communicating with the geodesic lens (26) to provide an output responsive to the interference between the first and second portions of the electromagnetic radiation received through the aperture (20).
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