title: Controlling the Two-Photon-Induced Photon Cascade Emission in a Gd(3+)/Tb(3+)-Codoped Glass for Multicolor Display.
abstract: We reported the first observation of the two-photon-induced quantum cutting phenomenon in a Gd(3+)/Tb(3+)-codoped glass in which two photons at ~400 nm are simultaneously absorbed, leading to the cascade emission of three photons in the visible spectral region. The two-photon absorption induced by femtosecond laser pulses allows the excitation of the energy states in Gd(3+) which are inactive for single-photon excitation and enables the observation of many new electric transitions which are invisible in the single-photon-induced luminescence. The competition between the two-photon-induced photon cascade emission and the single-photon-induced emission was manipulated to control the luminescence color of the glass. We demonstrated the change of the luminescence color from red to yellow and eventually to green by varying either the excitation wavelength or the excitation power density.
authors.affiliation: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China.
authors.forename: Mao-Hui
authors.initials: MH
authors.lastname: Yuan
authors.affiliation: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China.
authors.forename: Hai-Hua
authors.initials: HH
authors.lastname: Fan
authors.affiliation: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Lan
authors.affiliation: School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China.
authors.forename: Shao-Long
authors.initials: SL
authors.lastname: Tie
authors.affiliation: MOE Key Laboratory of Specially Functional Materials, Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China.
authors.forename: Zhong-Min
authors.initials: ZM
authors.lastname: Yang