2008/10/31 by A. Baron, Alexandre Baron, A. Ryasnyanskiy +15
Engineering · Physics and Astronomy · #Art #Business #Humanities #Law #Materials science #Nonlinear Optical Materials Studies #Optics #Optoelectronics #Order (exchange) #Photonic Crystals and Applications #Photonic and Optical Devices #Photonic crystal #Physics #Political science #Publics #physics.optics
paper · pdf · doi:10.1364/oe.17.000552
published as Alexandre Baron, Aleksandr Ryasnyanskiy, Nicolas Dubreuil, Philippe Delaye, Quynh Vy Tran, Sylvain Combrie, Alfredo de Rossi, Robert Frey, and Gerald Roosen, Opt. Express 17, 552-557 (2009) · 6 pages
openalex publication_date 2009/01/07 · arxiv created 2009/01/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Nonlinear propagation experiments in GaAs photonic crystal waveguides (PCW) were performed, which exhibit a large enhancement of third order nonlinearities, due to light propagation in a slow mode regime, such as two-photon absorption (TPA), optical Kerr effect and refractive index changes due to free-carriers generated by TPA. A theoretical model has been established that shows a very good quantitative agreement with experimental data and demonstrates the important role that the group velocity plays. These observations give a strong insight into the use of PCWs for optical switching devices.