Résumé
We present the optical characterization of an all-dielectric photonic crystal (PC)-based guided resonance filter sensitive to index-of-refraction changes in aqueous solutions. Spectral peak width was found to be 9.8 and 4.4 nm around 816 nm (water media), corresponding to a quality factor Q of 83 and 181, respectively. A spectral shift of peak wavelength with index change of 130 nm/RIU was observed for bulk fluid experiments. Measured peak shift (&Dgr;&lgr;=0.2nm) corresponds to a detectable index change &Dgr;n=1.5×10-3.
langue originale | Anglais |
---|---|
Pages (de - à) | 1-9 |
Nombre de pages | 9 |
journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 6447 |
Les DOIs | |
Etat de la publication | Publié - 2007 |