Optical detection and spatial modulation of mid-infrared surface plasmon polaritons in a highly doped semiconductorTools Di Paola, D.M., Velichko, Anton V., Bomers, Mario, Balakrishnan, Nilanthy, Makarovsky, Oleg, Capizzi, Mario, Cerutti, Laurent, Baranov, Alexei N., Kesaria, M., Krier, A., Taliercio, Thierry and Patanè, Amalia (2018) Optical detection and spatial modulation of mid-infrared surface plasmon polaritons in a highly doped semiconductor. Advanced Optical Materials, 6 (3). 1700492/1-1700492/7. ISSN 2195-1071 Full text not available from this repository.AbstractHighly 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). Post-growth 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 photo-annealing 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.
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