Fluorine-Doped Tin Oxides For Mid-Infrared Plasmonics

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.

Publication Date

1-1-2015

Publication Title

Optical Materials Express

Volume

5

Issue

10

Number of Pages

2184-2192

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OME.5.002184

Socpus ID

84947436410 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84947436410

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