Nonlinear optical tuning of photonic crystal microcavities by near-field probe
Anno: 2008
Autori: Vignolini S., Intonti F., Balet L., Zani M., Riboli F., Vinattieri A., Wiersma D., Colocci M., Li L., Francardi M., Gerardino A., Fiore A., Gurioli M.
Affiliazione autori: LENS and Department of Physics, University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy; CNISM, Unità di Ricerca di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Italy; Ecole Polytechnique Fédérale de Lausanne, Institute of Photonics and Quantum Electronics, Station 3, CH-1015 Lausanne, Switzerland; Institute of Photonics and Nanotechnology, CNR, via del Cineto Romano 42, 00156 Roma, Italy; COBRA Research Institute, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
Abstract: We report on a nonlinear way to control and tune the dielectric environment of photonic crystal microcavities exploiting the local heating induced by near-field laser excitation at different excitation powers. The temperature gradient due to the optical absorption results in an index of refraction gradient which modifies the dielectric surroundings of the cavity and shifts the optical modes. Reversible tuning can be obtained either by changing the excitation power density or by exciting in different points of the photonic crystal microcavity. (C) 2008 American Institute of Physics.
Giornale/Rivista: APPLIED PHYSICS LETTERS
Volume: 93 (2) Da Pagina: 023124 A: 023124
Parole chiavi: resonanceDOI: 10.1063/1.2960259Citazioni: 15dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-05Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui