High-fidelity spatial light modulator
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United States of America Patent
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Feb 17, 1998
Grant Date -
N/A
app pub date -
May 12, 1995
filing date -
May 12, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A light modulator is described which generates an output optical field from an input optical field. The light modulator features first and second polarization-rotating elements which are directly attached to one another. Each element contains an array of pixels including liquid crystals aligned along a specific axis. During operation, the pixels are biased to rotate the liquid crystals. For a particular polarization, the phase and amplitude profiles of the input optical field passing through the pixel array can be arbitrarily and independently controlled across an aperture of the light modulator.
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