journal article·2015-10-01Open access

Fluorine-doped tin oxides for mid-infrared plasmonics

Farnood Khalilzadeh-Rezaie, Isaiah O. Oladeji, Justin W. Cleary, Nima Nader, Janardan Nath, Imen Rezadad, Robert E. Peale

Optical Materials Express· Volume 5· Issue 10

Abstract

Fluorine-doped tin oxides (FTO) were investigated for infrared plasmonic applications. Nano-crystalline FTO thin films were grown by the SPEED chemical-spray deposition method. Complex permittivity spectra were measured from 1.6 to 12 μm wavelength. These spectra were used to calculate materials parameters, which compared well with values from transport measurements, and to predict characteristics of surface plasmon polaritons (SPP). Reflectivity spectra for lamellar FTO gratings revealed SPP coupling resonances in good agreement with predictions. The FTO film studied here is well suited for plasmonic applications in the important 3-5 μm wavelength range.
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Research context

OpenAlex topics: Optical Coatings and Gratings · Plasmonic and Surface Plasmon Research · GaN-based semiconductor devices and materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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