Mode tuning of photonic crystal nanocavities by photoinduced non-thermal oxidation
Year: 2012
Authors: Intonti F., Caselli N., Vignolini S., Riboli F., Kumar S., Rastelli A., Schmidt O.G., Francardi M., Gerardino A., Balet L., Li L.H., Fiore A., Gurioli M.
Autors Affiliation: Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dept Phys, I-50019 Sesto Fiorentino, Italy; IFW Dresden, Inst Integrat Nanosci, D-01069 Dresden, Germany; CNR, Inst Photon & Nanotechnol, I-00156 Rome, Italy; Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, CH-1015 Lausanne, Switzerland; Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands.
Abstract: A method to achieve photoinduced tuning of PhC nanocavity modes is discussed and implemented. It is based on light induced oxidation in air atmosphere with very low thermal budget which produces a local reduction of the GaAs membrane effective thickness and a large blueshift of the nanocavity modes. It is also shown that green light is much more efficient in inducing the micro-oxidation with respect to near infrared light. The observed behaviour is attributed to oxide growth promoted by photoenhanced reactivity.
Journal/Review: APPLIED PHYSICS LETTERS
Volume: 100 (3) Pages from: 33116-1 to: 33116-4
More Information: The authors thank V. Matarrazzo for helping in the sample holder development. This work was financially supported by the MIUR project PRIN2008H9ZAZR.KeyWords: Single Quantum-dot; Laser; O2DOI: 10.1063/1.3678036Citations: 25data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)