All-optical tuning of a photonic band-gap via near-infrared laser pulses
- Autori: Pasquazi, A; Stivala, S; Assanto, G; Amendola, V; Meneghetti, M; Cucini, M; Comoretto, D
- Anno di pubblicazione: 2008
- Tipologia: eedings
- Parole Chiave: All-optical tuning; Photonic crystals
- OA Link: http://hdl.handle.net/10447/49290
Abstract
We present an all-optical tuning at IR wavelength in a novel photonic crystal consisting of a polystyrene opal with gold nanoparticles. The band-gap can be finely tuned with permanent shifts as large as 30 nm irradiating the sample with ps pulses at a low rep-rate in the visible.