Tunable optical filter having a large dynamic range

Ofir Aharon, I. Abdulhalim

    Research output: Contribution to journalArticlepeer-review

    39 Scopus citations

    Abstract

    A novel (to our knowledge) concept for a tunable birefringent filter with a high dynamic range is proposed and demonstrated by using a stack of liquid-crystal retarders having different thicknesses following an arithmetic sequence. Each retarder is between crossed polarizers with its optic axis oriented azimuthally at 45° to the polarizer axis. The tunable filter was fabricated by using nematic liquid crystals demonstrating tunability over a range of 800 nm, covering the visible and the near IR; hence it has a potential for use in biomedical optical imaging applications.

    Original languageEnglish
    Pages (from-to)2114-2116
    Number of pages3
    JournalOptics Letters
    Volume34
    Issue number14
    DOIs
    StatePublished - 15 Jul 2009

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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