title: Two-photon-induced fluorescence from the phycoerythrin protein.
abstract: Two-photon-induced fluorescence is observed from the photodynamic phycobiliprotein phycoerythrin. Temporal, spectral, and intensity-dependent properties of the two-photon-induced fluorescence emission from phycoerythrin excited by a 1.06-mum laser beam are reported. The measured two-photon absorption cross section of phycoerythrin is an order of magnitude larger than that of Rhodamine 6G. The potential applications of phycobiliproteins for two-photon-induced fluorescence for microscopy of three-dimensional biological samples and three-dimensional optical memory are discussed.
authors.forename: Z
authors.initials: Z
authors.lastname: Chen
authors.forename: D L
authors.initials: DL
authors.lastname: Kaplan
authors.forename: K
authors.initials: K
authors.lastname: Yang
authors.forename: J
authors.initials: J
authors.lastname: Kumar
authors.forename: K A
authors.initials: KA
authors.lastname: Marx
authors.forename: S K
authors.initials: SK
authors.lastname: Tripathy