Tunable multilayer narrowband filter containing an ultrathin metallic film and a lithium niobate defect

Yang Hua Chang, Chi Chung Liu, Tzong Jer Yang, Chien Jang Wu

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    By using lithium niobate (LiNbO 3) as a defect layer, a tunable multilayer narrowband reflection-and-transmission filter containing an ultrathin metallic film is proposed. Due to the voltage dependence of the refractive index for LiNbO 3), tunable optical filtering properties have been theoretically investigated based on the calculated wavelengthdependent reflectance and transmittance. The dependences of peakwavelength on the applied voltage and the angle of incidence are numerically illustrated. The results reveal that in addition to working as a tunable filter, it can also be expected to act as a refractometric opticalsensor.

    Original languageEnglish
    Pages (from-to)359-365
    Number of pages7
    JournalOptical and Quantum Electronics
    Volume42
    Issue number6-7
    DOIs
    Publication statusPublished - 2011 Jun 1

    Keywords

    • Electro-optical tuning
    • Metal/dielectric films
    • Narrowband filter

    ASJC Scopus subject areas

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

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