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28.4: Poincare Sphere Analysis of LCOS E‐O Effects
Author(s) -
Zhang Yanli,
Bos Philip J.,
Chung David B.,
GrunnetJepsen Anders
Publication year - 2004
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1825812
Subject(s) - poincaré conjecture , graph , state (computer science) , liquid crystal on silicon , mode (computer interface) , poincaré map , selection (genetic algorithm) , optics , computer science , mathematics , physics , mathematical analysis , liquid crystal , algorithm , theoretical computer science , nonlinear system , artificial intelligence , quantum mechanics , bifurcation , operating system
LCoS imager performance depends on the liquid crystal (LC) operation mode that is being selected. In this paper we explain the design principle in an alternative way by using Poincare sphere analysis. The selection of the compensator parameters for the LC modes, which need to be compensated to get good dark state, is also discussed by using Poincare sphere analysis. We also introduce the plotting of reflectivity vs. retardation(Δnd /λ) with bright state and black state plotted on the same graph, which we found is very helpful for mode selection.