Abstract

BIGGEMANN, Daniel. Nd³⁺ and Er³⁺ in morphous silicon compounds for photonics. RevActaNova. [online]. 2005, vol.3, n.1, pp.79-82. ISSN 1683-0789.

This work presents a study of the photoluminescence (PL) of Nd and Er-doped hydrogenated amorphous silicon compounds. Thin films were deposited by rf sputtering a silicon target partially covered by small metallic Nd or Er platelets in a H₂ + N₂ + Ar or H₂ + O₂ + Ar atmosphere, respectively. PL measurements on waveguide geometry were performed. The experimental results indicate a super linear behavior of the PL with excitation power for both materials at 10 K. There were found cavity modes indicating a interference process inside the waveguide. The results suggest the presence of stimulated emission process and the power of the materials to be used for photonic purposes.

Keywords : Neodymium; erbium; amorphous silicon; photoluminescence; photonics.

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