Complex modulation characterization of liquid crystal spatial light modulators by digital holographic microscopy

Chau-Jern Cheng, Yu Chih Lin, Mei Li Hsieh, Han Yen Tu

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    We propose and demonstrate the characterization of complex modulation of liquid crystal devices by phase-shifting digital holographic microscopy with lensless imaging configuration. The complex-modulated wavefronts of the liquid crystal spatial light modulator are measured directly from the reconstructed field of the phase-shifted digital holograms. The characteristics of various operation modes of the commercial twisted nematic liquid crystal devices are specified as functions of input gray levels.

    Original languageEnglish
    Pages (from-to)3527-3529
    Number of pages3
    JournalJapanese Journal of Applied Physics
    Volume47
    Issue number5 PART 1
    DOIs
    Publication statusPublished - 2008 May 16

    Keywords

    • Complex modulation
    • Digital holography
    • Liquid crystal spatial light modulator

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

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