PIXELATED, DIFFRACTIVE OPTICAL ELEMENT HAVING TWO HEIGHT STEPS FOR THE PRODUCTION OF A PHASE DISTRIBUTION WITH AN ARBITRARY PHASE DEVIATION
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United States of America Patent
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Issued Date -
Oct 18, 2012
app pub date -
Aug 13, 2010
filing date -
Aug 14, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A diffractive optical element generates a phase distribution with an arbitrary quasi-continuous phase deviation. The diffractive optical element includes a plurality of pixels configured to generate an adjustable phase deviation. Each pixel has a base face, and the plurality of pixels being disposed adjacent each other with their base faces in an element plane of the diffractive optical element. One or more pixels of the plurality of pixels includes a height profile formed by a first face and a second face of the one or more pixels. A distance between the first face and second face defining a height step that is tuned to an adjustable maximum phase deviation of the diffractive optical element.
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