Optical resonator in gap plasmon waveguide

Masanobu Haraguchi; Hidenori Sokabe; Tatsuya Okuno; Toshihiro Okamoto; Masuo Fukui

doi:10.1117/12.861131

10 September 2010 Optical resonator in gap plasmon waveguide

Masanobu Haraguchi, Hidenori Sokabe, Tatsuya Okuno, Toshihiro Okamoto, Masuo Fukui

Proceedings Volume 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII; 775720 (2010) https://doi.org/10.1117/12.861131
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

We have studied characteristics of an optical resonator with two stubs as functional devices in a plasmon waveguide in order to realize compact integrated optical circuits. The resonator is consisting of two stubs set separately in the waveguide where the stub works as low loss mirror. Numerical simulation has clearly shown that the resonator process high Q value as a plasmonic resonator. We have also fabricated stub-type resonators in gap plasmonic waveguides, of which the gap width is around 150 nm, with stubs embedded in a silver thin film on a substrate by using FIB direct processing techniques. The characteristics of these structures have been observed experimentally from visible to near-infrared light. And we have successfully observed the resonance of the resonator in the transmission spectrum.

Citation Download Citation

Masanobu Haraguchi, Hidenori Sokabe, Tatsuya Okuno, Toshihiro Okamoto, and Masuo Fukui "Optical resonator in gap plasmon waveguide", Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 775720 (10 September 2010); https://doi.org/10.1117/12.861131

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