Surface Plasmon Resonances in Sn: In2O3 Thin Films with Diffraction Grating

Proceedings

Iwakiri, Ryotaro¹  Hasuike, Noriyuki²  Takeda, Minoru³  Ochiai, Saito⁴ 

[1] Author to whom correspondence should be addressed.;Department of Electronics, Kyoto Institute of Technology, Kyoto 606-8585, Japan;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018;WaferMaters, Inc., Dublin, CA 94568, USA

关键词: surface plasmon resonance;    Indium Tin Oxide (ITO);    diffraction grating;   

DOI  :  10.3390/proceedings2131034

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

We newly proposed transparent conductive oxide with diffraction grating structure as an excitation field of surface plasmon resonance working at near-infrared spectral region. We experimentally demonstrated the excitation of SPR using Sn-doped In2O3 films with micro-meter pitched diffraction grating. In this study, we considered the correlation between the grating pitch and the optical reflection spectra. Reflection spectra showed clear polarization properties in infrared spectral region, and the reflection edge has also correlation with the pitch of grating. From these results, the excitation of SPR grating was successfully demonstrated and the wavelength can be tuned by changing the grating pitch in infrared region.

【 授权许可】

CC BY