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. Author manuscript; available in PMC: 2009 Jul 17.
Published in final edited form as: Anal Chem. 2008 Mar 21;80(8):2637–2645. doi: 10.1021/ac800097c

Figure 1.

Figure 1

(A) Molecular structure of 5CB (B) Schematic illustration of TNLC. Bold arrows indicate the in-plane direction of deposition of the gold films that confine the LC. The angles indicated in the diagram are defined in the text. (C) Diagram of the angles used to analyze the TNLC between two polarizers. (D) A stack of images of a TNLC obtained using orientations of the analyzer ranging from 0 ° to 170 °. Image analysis condenses the information present in the stack of images into a single map of the twist angle over the entire surface.