title: Fast optical vapour sensing by Bloch surface waves on porous silicon membranes.
abstract: The coupling of optical Bloch surface waves at the truncated end of one dimensional porous silicon photonic crystals is exploited for fast vapour sensing. Self-standing multilayered membranes bound to transparent substrates were fabricated by electrochemical etching and used in an attenuated total reflection configuration to resonantly excite the surface waves and perform real-time sensing.
authors.affiliation: SAPIENZA Università di Roma, Dipartimento di Energetica, Via A.Scarpa, 16 00161 Roma, Italy. francesco.michelotti@uniroma1.it
authors.forename: Francesco
authors.initials: F
authors.lastname: Michelotti
authors.forename: Beniamino
authors.initials: B
authors.lastname: Sciacca
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Dominici
authors.forename: Marzia
authors.initials: M
authors.lastname: Quaglio
authors.forename: Emiliano
authors.initials: E
authors.lastname: Descrovi
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Giorgis
authors.forename: Francesco
authors.initials: F
authors.lastname: Geobaldo