Interference filter for non-zero angle of incidence spectroscopy
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United States of America Patent
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Jan 2, 2018
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N/A
app pub date -
Feb 13, 2015
filing date -
May 30, 2007
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Abstract
The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.
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