Post-fabrication control of evanescent tunnelling in photonic crystal molecules

Year: 2012

Authors: Caselli N., Intonti F., Bianchi C., Riboli F., Vignolini S., Balet L., Li L.H., Francardi M., Gerardino A., Fiore A., Gurioli M.

Autors Affiliation: Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dept Phys, I-50019 Sesto Fiorentino, Italy; Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, CH-1015 Lausanne, Switzerland; CNR, Inst Photon & Nanotechnol, I-00156 Rome, Italy; Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands.

Abstract: The post-fabrication control of evanescent tunnelling in photonic crystal molecules is demonstrated through the combination of selective infiltration and oxidation. By laser non thermal oxidation, we reduce the photonic coupling by more than 30% while by means of water micro-infiltration, we increase it by 28%. Fine-tuning of the photonic coupling is achieved by low-power laser oxidation and forced evaporation, opening the route to post-fabrication control of array of coupled cavities. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767216]

Journal/Review: APPLIED PHYSICS LETTERS

Volume: 101 (21)      Pages from: 211108-1  to: 211108-5

KeyWords: Wavelength; Nanocavities
DOI: 10.1063/1.4767216

Citations: 16
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