Optical Detection and Spatial Modulation of Mid-Infrared Surface Plasmon Polaritons in a Highly Doped Semiconductor

Davide Maria Di Paola , Anton V. Velichko , Mario Bomers (1, 2) , Nilanthy Balakrishnan , Oleg Makarovsky , Mario Capizzi , Laurent Cerutti (1, 2) , Alexei N. Baranov (1, 2) , Manoj Kesaria , Anthony Krier , Thierry Taliercio (1, 2) , Amalia Patane

1 IES - Institut d’Electronique et des Systèmes
2 NANOMIR - Composants à Nanostructure pour le moyen infrarouge

Highly doped semiconductors (HDSCs) are promising candidates for plasmonic applications in the mid-infrared (MIR) spectral range. This work examines a recent addition to the HDSC family, the dilute nitride alloy In(AsN). Postgrowth hydrogenation of In(AsN) creates a highly conducting channel near the surface and a surface plasmon polariton detected by attenuated total reflection techniques. The suppression of plasmonic effects following a photoannealing of the semiconductor is attributed to the dissociation of the N-H bond. This offers new routes for direct patterning of MIR plasmonic structures by laser writing.

Mots clés: hydrogenation; mid-infrared; plasmonics; polaritons; semiconductors

Domaines: Optique / photonique

Davide Maria Di Paola, Anton V. Velichko, Mario Bomers, Nilanthy Balakrishnan, Oleg Makarovsky, et al.. Optical Detection and Spatial Modulation of Mid-Infrared Surface Plasmon Polaritons in a Highly Doped Semiconductor. Advanced Optical Materials, 2018, 6 (3), pp.1700492. ⟨10.1002/adom.201700492⟩. ⟨hal-01754879⟩