| Title | Multiphoton ultraviolet and visible upconversion luminescence of Tm3+Yb3+ co-doped oxyfluoride glass |
| Authors | Chen, Xiaobo Wang, Yafei Song, Zengfu Sawanobori, N. Ohtsuka, M. |
| Affiliation | Beijing Normal Univ, Anal & Testing Ctr, Appl Opt Beijing Area Major Lab, Dept Phys, Beijing 100875, Peoples R China. Peking Univ, Sch Phys, Beijing 100871, Peoples R China. |
| Keywords | upconversion luminescence ultraviolet oxyfluoride glass saturation Tm3+ ion Yb3+ ion energy transfer ENERGY-LEVELS LASER IONS CERAMICS ER3+ SENSITIZATION EXCITATION CRYSTALS DISPLAY SOLIDS |
| Issue Date | 2007 |
| Publisher | optics communications |
| Citation | OPTICS COMMUNICATIONS.2007,277,(2),335-341. |
| Abstract | The ultraviolet upconversion luminescence of Tm3+ ions sensitized by Yb3+ ions in oxyfluoride glass when excited by a 975 nm diode laser was studied in this paper. One typical ultraviolet upconversion luminescence lines positioned at 362.3 nm was found. It can be attributed to the five-photon upconversion luminescence transition of D-1(2) -> H-3(6). Several visible upconversion luminescence lines at 451.1 nm, (477.9 nm, 462.5 nm), 648.7 nm, (680.5 nm, 699.5 nm) and (777.5 nm, 800.7 nm) were found also, which results from the fluorescence transitions of five-photon D-1(2) -> F-3(4), three-photon (1)G(4) -> H-3(6), three-photon (1)G(4) -> F-3(4), two-photon F-3(3) -> H-3(6) and two-photon H-3(4) -> H-3(6) of TM3+ ion, respectively. The theoretical analysis suggests that the upconversion mechanism of the 362.3 nm D-1(2) -> H-3(6) upconversion luminescence is the cross energy transfer of {H-3(4)(TM3+) -> F-3(4)(TM3+), (1)G(4)(TM3+), D-1(2)(TM3+)} and {(1)G(4)(Tm3+) -> F-3(4)(Tm3+), H-3(4)(TM3+) -> D-1(2)(TM3+)} between TM3+ ions. In addition, the upconversion luminescence of (1)G(4) and H-3(4) state results from the sequential energy transfer {F-2(5/2)(Yb3+) -> F-2(7/2)(Yb3+), H-3(4)(TM3+), (1)G(4)(TM3+)} and {F-2(5/2)(Yb3+) -> (2)F7/2 (Yb3+), F-3(4)(TM3+), F-3(2)(TM3+)} from Yb3+ ions to TM3+ ions, respectively. (c) 2007 Published by Elsevier B.V. |
| URI | http://hdl.handle.net/20.500.11897/249688 |
| ISSN | 0030-4018 |
| DOI | 10.1016/j.optcom.2007.03.088 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 物理学院 |
