In a cholesteric cell with homeotropic boundary conditions and pitch p to thickness d ratio p/d ~ 1 we find a bubble domain, which in PM under crossed polarizer and analyzer looks like this
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In a cholesteric cell with homeotropic boundary conditions and pitch p to thickness d ratio p/d ~ 1 we find a bubble domain, which in PM under crossed polarizer and analyzer looks like this |
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Click to begin the FCPM scan through this complex
director structure with polarizer P along Y.
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Now click again to begin the FCPM scan through this
complex director structure with polarizer P along X.
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The FCPM scans clearly can give much more information about the 3D pattern of director field in the cell than it does PM
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