Plasmonic active spectral filter in VIS-NIR region using
metal-insulator-metal (MIM) structure on glass plate

Yasushi Oshikane; Kensuke Murai; Takaya Higashi; Fumihiko Yamamoto; Motohiro Nakano; Haruyuki Inoue

doi:10.1117/12.929201

15 October 2012 Plasmonic active spectral filter in VIS-NIR region using metal-insulator-metal (MIM) structure on glass plate

Yasushi Oshikane, Kensuke Murai, Takaya Higashi, Fumihiko Yamamoto, Motohiro Nakano, Haruyuki Inoue

Author Affiliations +

Proceedings Volume 8463, Nanoengineering: Fabrication, Properties, Optics, and Devices IX; 846303 (2012) https://doi.org/10.1117/12.929201
Event: SPIE NanoScience + Engineering, 2012, San Diego, California, United States

Abstract

Interaction between surface plasmons at two interfaces inside a meta-insulator-metal (MIM) structure is one of the interesting physical phenomena in nanophotonics. We have started to create a plasmonic active spectral filter based on the MIM structure for a developing white light-emitting diode (LED) visible-light communication. An optical active filter at visible region assisted by surface plasmon resonance (SPR) in MIM structure of vacuum-deposited thin films on glass substrate has been studied both experimentally and theoretically. Interface between the first thin silver layer (M1, around 50 nm-thick) and bulk glass slide is appropriate for excitation of SPR at particular wavelength and incident angle of illumination light. And spatial extension of the SPR wave may cause an effective propagating mode confined in the insulator layer (I, around 150 nm-thick) by both M1 and the second thick silver layer (M2, around 200 nm-thick). Such an energy conversion from the illuminating light to the propagating SPR modes corresponds to an evident absorption dip on spectral reflectance curve of the MIM structure, and the shape of dip may vary widely in response to material and configuration of the MIM. The spectral and angular reflectance of the prototypical MIM structure has been measured by spectrophotometer for P- and S-polarized light because the plasmonic effect inside the MIM structure depends strongly on the polarization of light. Such the characteristic reflection feature has also been studied by using both the usual transfer matrix method and 2D electromagnetic simulation based on the finite element method. In this talk, several striking and preliminary MIM prototypes will be introduced and discussed.

Citation Download Citation

Yasushi Oshikane, Kensuke Murai, Takaya Higashi, Fumihiko Yamamoto, Motohiro Nakano, and Haruyuki Inoue "Plasmonic active spectral filter in VIS-NIR region using metal-insulator-metal (MIM) structure on glass plate", Proc. SPIE 8463, Nanoengineering: Fabrication, Properties, Optics, and Devices IX, 846303 (15 October 2012); https://doi.org/10.1117/12.929201

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