title: Guided blue and green upconversion fluorescence in an erbium-ytterbium-containing silicate glass.
abstract: We observe guided blue and green upconversion fluorescence in an ion-exchanged waveguide that is fabricated in an erbium-ytterbium-codoped silicate laser glass. The guides are optically pumped at room temperature by using a Ti:sapphire laser with lambda = 880-980 nm; the observed fluorescence is in two bands, 480-490 and 520-560 nm, and results from multiphoton excitation.
authors: J L
authors: JL
authors: Jackel
authors: A
authors: A
authors: Yi-Yan
authors: E M
authors: EM
authors: Vogel
authors: A
authors: A
authors: Von Lehmen
authors: J J
authors: JJ
authors: Johnson
authors: E
authors: E
authors: Snitzer