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lcr2139
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Homework Statement
[/B]Quartz is positive uniaxial crystal with ne (extraordinary axis) = 1.553 and no (ordinary axis) = 1.554.A) determine the retardation per mm at lambda (wavelength) when the crystal is oriented such that retardation is maximized.
B) At what thickness(es) does the crystal act as a quarter wave retarder?
Homework Equations
retardation (delta) = thickness (t) x (no-ne)
retardation (delta) = (2pi * (no-ne) * thickness (t) ) / (wavelength)
The Attempt at a Solution
A) retardation/thickness = no - ne
B) t/delta = (2pi * wavelength * (no-ne)
Am I using the right equations? I don't think so. What are they?