An accurate envelope equation for light propagation in photonic nanowires: new nonlinear effects

Truong X. Tran, Fabio Biancalana

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We derive a set of new unidirectional evolution equations for photonic nanowires, i.e. waveguides with sub-wavelength core diameter. Contrary to previous approaches, our formulation simultaneously takes into account both the vector nature of the electromagnetic field and the full variations of the effective modal profiles with wavelength. This leads to the discovery of new, previously unexplored nonlinear effects which have the potential to affect soliton propagation considerably. We specialize our theoretical considerations to the case of perfectly circular silica strands in air, and we support our analysis with detailed numerical simulations. (C) 2009 Optical Society of America

Original languageEnglish
Pages (from-to)17934-17949
Number of pages16
JournalOptics Express
Issue number20
Publication statusPublished - 28 Sep 2009

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