Instantaneous polarization measurement system and method
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United States of America Patent
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Jul 18, 2006
Grant Date -
Jan 13, 2005
app pub date -
Jul 8, 2003
filing date -
Jul 8, 2003
priority date (Note) -
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Abstract
The invention provides a highly sensitive measurement of retardance and slow axis orientation, accurately and instantaneously, across a full two-dimensional image. There are no moving parts and there need not be any electro-optic tuning as part of the measurement. It is ideally adapted to real-time imaging and is well-suited to use with biological and medical samples, including visualizing structures in oocytes. The invention splits a light beam into several beams, which are analyzed using elliptical polarizers and the resultant intensity is measured. It can be constructed using a single pixilated detector, or several detectors, to achieve high spatial resolution when this is desired.
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