Resonant coupling into hybrid 3D micro-resonator devices on organic/biomolecular film/glass photonic structures

Bruno Bêche (1) , Arnaud Potel (1) , Jérémy Barbé (1) , Véronique Vié (1) , Joseph Zyss (2) , Christian Godet (1) , Nolwenn Huby (1) , David Pluchon (1) , Etienne Gaviot (3)

1 IPR - Institut de Physique de Rennes
2 LPQM - Laboratoire de Photonique Quantique et Moléculaire
3 LAUM - Laboratoire d'Acoustique de l'Université du Mans

We have designed and realized an integrated photonic family of micro-resonators (MR) on multilayer SU8/lipidic film/glass materials. Such a family involves hybrid 3D-MR structures composed of spherical glass-MR arranged upon organic pair-SU8-waveguides, an efficient coupling being ensured with a Langmuir-Blodgett Dipalmitoylphosphatidylcholine (DPPC-lipid from Avanti Polar®) film whose thickness is ranging from 12 to 48 nm. We have characterized such add/drop filters, respectively, in intensity and spectral measurements, and experimentally achieved an evanescent resonant-photonic-coupling between the 3D-MR and the 4-ports structure through the DPPC-gap. Spectral resonances have been measured for 4-whispering gallery-modes (WGM) into such 3D-structures, respectively, characterized with a 0.97 nm free spectral range (FSR) and a high quality Q-factor up to 4.104.

Mots clés: Integrated photonics; 3D micro-resonators; Add-drop filters; Whispering gallery-modes; SU-8 polymer; Biomolecular lipid films

Bruno Bêche, Arnaud Potel, Jérémy Barbé, Véronique Vié, Joseph Zyss, et al.. Resonant coupling into hybrid 3D micro-resonator devices on organic/biomolecular film/glass photonic structures. Optics Communications, 2010, 283 (1), pp.164-168. ⟨10.1016/j.optcom.2009.09.049⟩. ⟨hal-00651996⟩