Measurement of the Jones matrix of liquid crystal displays using a common path interferometer

Tams Sarkadi, Pál Koppa

Research output: Contribution to journalArticle

5 Citations (Scopus)


We propose a robust interferometric method to measure the Jones matrix of polarization components, especially liquid crystal displays. Phase values are measured by a simple common path interferometer containing a birefringent crystal as beam splitter and a polarizer as beam combiner. This solution eliminates the sensitivity of traditional interferometric techniques to vibration, temperature variation or wavefront distortion. The proposed phase measurement method is applicable to the measurement of both spatially homogeneous and binary modulated states, thus the modulation transfer function and inter-pixel interference can also be studied. We demonstrate this technique by the measurement of a liquid crystal on silicon display. The resulting Jones matrix, as a function of displayed gray level, can be efficiently embedded in any numeric model of an optical system containing the analyzed spatial light modulator.

Original languageEnglish
Article number035404
JournalJournal of Optics
Issue number3
Publication statusPublished - Mar 1 2011


  • liquid crystal display
  • spatial light modulator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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