title: Optical properties of a new two-photon absorbing chromophore.
abstract: A new dye, trans-4-[p-(pyrrolidinyl)styryl]-N-methylpyridinium iodide, has been synthesized, and the two-photon-absorption (TPA), TPA-induced frequency upconversion emission, and two-photon-pumped (TPP) frequency upconverted lasing properties of this new dye were experimentally studied. This new dye has a moderate TPA cross section of varsigma(2) = 5.7 x 10(-48) (cm(4) s(-1))/photon at 1064 nm but exhibits high lasing efficiency. The slope efficiency of the TPP cavity laser with this new dye as the laser medium is 1.6%.
authors: C
authors: C
authors: Wang
authors: X
authors: X
authors: Wang
authors: Z
authors: Z
authors: Shao
authors: X
authors: X
authors: Zhao
authors: G
authors: G
authors: Zhou
authors: D
authors: D
authors: Wang
authors: Q
authors: Q
authors: Fang
authors: M
authors: M
authors: Jiang