Optical and Quantum Electronics

, Volume 42, Issue 6–7, pp 359–365 | Cite as

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


By using lithium niobate (LiNbO3) 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 LiNbO3, tunable optical filtering properties have been theoretically investigated based on the calculated wavelength-dependent reflectance and transmittance. The dependences of peak wavelength 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 optical sensor.


Metal/dielectric films Narrowband filter Electro-optical tuning 


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Copyright information

© Springer Science+Business Media, LLC. 2011

Authors and Affiliations

  • Yang-Hua Chang
    • 1
  • Chi-Chung Liu
    • 2
  • Tzong-Jer Yang
    • 3
  • Chien-Jang Wu
    • 4
  1. 1.Department of Electronic EngineeringNational Yunlin University of Science and TechnologyYunlinTaiwan
  2. 2.Department of Electro-Optics EngineeringNational Formosa UniversityYunlinTaiwan
  3. 3.Department of Electrical EngineeringChung Hua UniversityHsinchuTaiwan
  4. 4.Institute of Electro-Optical Science and TechnologyNational Taiwan Normal UniversityTaipeiTaiwan

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