Angular dependence of a narrowband reflection-and-transmission filter containing an ultrathin metallic film

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

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    The angular dependence of filtering properties for a novel narrowband reflection-and-transmission filter made of an ultrathin metallic film in front of a planar Fabry-Perot resonator is theoretically investigated. It is shown that the simultaneous peaks in reflection and transmission are strongly dependent on the polarization of the incident wave. The peak positions of the reflection and transmission are shifted to shorter wavelengths as the angle of incidence increases in both TM and TE polarization. Additionally, the reflection peak height is increased in TE polarization, whereas it is decreased in TM polarization. Two effective Brewster angles can be defined through the angle-dependent reflectance at the resonant wavelength for both polarizations. The first, for TE polarization, is found at 34°, and the second is 77° for TM polarization. The structure could thus be used as a polarizing device in addition to a filtering one.

    Original languageEnglish
    Pages (from-to)1141-1145
    Number of pages5
    JournalJournal of the Optical Society of America B: Optical Physics
    Volume26
    Issue number5
    DOIs
    Publication statusPublished - 2009 May 1

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    narrowband
    filters
    polarization
    Brewster angle
    wavelengths
    incidence
    resonators
    reflectance

    ASJC Scopus subject areas

    • Statistical and Nonlinear Physics
    • Atomic and Molecular Physics, and Optics

    Cite this

    Angular dependence of a narrowband reflection-and-transmission filter containing an ultrathin metallic film. / Chang, Yang Hua; Liu, Chi Chung; Yang, Tzong Jer; Wu, Chien-Jang.

    In: Journal of the Optical Society of America B: Optical Physics, Vol. 26, No. 5, 01.05.2009, p. 1141-1145.

    Research output: Contribution to journalArticle

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