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Proceedings Paper

Supersaturated silicon for near-infrared plasmonics (Conference Presentation)
Author(s): Jura Rensberg; Kevin Wolf; Martin Hafermann; Andreas Undisz; Jürgen Salfeld; Sebastian Geburt; Carsten Ronning

Paper Abstract

The free charge carrier concentration of semiconductors, such as in silicon, is tunable over several orders of magnitude. Thus, the plasma wavelength of these materials can be adjusted over a wide spectral range by controlling the doping concentration. Here we demonstrate that high fluence ion beam doping and subsequent pulsed laser annealing can extend the accessible plasma wavelength of silicon far into the near-infrared region reaching the telecommunication wavelength. Further, we demonstrate how area selective activation of dopants by focused laser annealing can be used to create flat optical and plasmonic devices that operate in the near-to-mid infrared regime.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11285, Silicon Photonics XV, 1128511 (9 March 2020); doi: 10.1117/12.2545931
Show Author Affiliations
Jura Rensberg, Friedrich-Schiller-Univ. Jena (Germany)
Kevin Wolf, Friedrich-Schiller-Univ. Jena (Germany)
Martin Hafermann, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Undisz, Friedrich-Schiller-Univ. Jena (Germany)
Jürgen Salfeld, Innovavent GmbH (Germany)
Sebastian Geburt, Innovavent GmbH (Germany)
Carsten Ronning, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 11285:
Silicon Photonics XV
Graham T. Reed; Andrew P. Knights, Editor(s)

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