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Bigeon, J., Huby, N., Duvail, J.-L. & Beche, B. (2014) Injection and waveguiding properties in SU8 nanotubes for sub-wavelength regime propagation and nanophotonics integration. Nanoscale, 6 5309–5314. 
Added by: Florent Boucher (2016-04-29 09:26:45)
Type de référence: Article
DOI: 10.1039/c3nr06716e
Numéro d'identification (ISBN etc.): 2040-3364
Clé BibTeX: Bigeon2014
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Catégories: PMN
Mots-clés: field, guides, light, losses, optical nanowires, polymer nanofibers
Créateurs: Beche, Bigeon, Duvail, Huby
Collection: Nanoscale
Consultations : 4/425
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
We report photonic concepts related to injection and sub-wavelength propagation in nanotubes, an unusual but promising geometry for highly integrated photonic devices. Theoretical simulation by the finite domain time-dependent (FDTD) method was first used to determine the features of the direct light injection and sub-wavelength propagation regime within nanotubes. Then, the injection into nanotubes of SU8, a photoresist used for integrated photonics, was successfully achieved by using polymer microlensed fibers with a sub-micronic radius of curvature, as theoretically expected from FDTD simulations. The propagation losses in a single SU8 nanotube were determined by using a comprehensive set-up and a protocol for optical characterization. The attenuation coefficient has been evaluated at 1.25 dB mm (1) by a cut-back method transposed to such nanostructures. The mechanisms responsible for losses in nanotubes were identified with FDTD theoretical support. Both injection and cut-back methods developed here are compatible with any sub-micronic structures. This work on SU8 nanotubes suggests broader perspectives for future nanophotonics.
Added by: Florent Boucher  
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