scholarly journals 4. The Role of Molecular Spectroscopy in the Vacuum Ultraviolet Region for the Development of a Negative Ion Source

2004 ◽  
Vol 80 (9) ◽  
pp. 757-762 ◽  
Author(s):  
Masaki NISHIURA
Keyword(s):  
Vacuum Ultraviolet ◽  
Molecular Spectroscopy ◽  
Ion Source ◽  
Negative Ion ◽  
Ultraviolet Region ◽  
Vacuum Ultraviolet Region

Photoluminescence properties of BaGdB9O16:Tb3+ codoped Zn2+ or Ce3+ under ultraviolet and vacuum ultraviolet excitation

2007 ◽  
Vol 22 (1) ◽  
pp. 238-243 ◽  
Author(s):  
Yu Hua Wang ◽  
Xiao Xia Li
Keyword(s):  
Energy Transfer ◽  
Single Phase ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Region ◽  
Photoluminescence Properties ◽  
Absorbed Energy ◽  
Ultraviolet Excitation ◽  
Vacuum Ultraviolet Region ◽  
No Absorption

Single phase of Ba1−xZnxGd0.75Tb0.25B9O16 and BaGd0.75−xCexTb0.25B9O16 (0 ≤ x ≤ 0.125) was prepared by the solid-state reaction. Under 254 nm excitation, Zn2+ impaired the emission of Tb3+; Ce3+ sensitized the luminescence of Tb3+ ascribing to the energy transfer of Ce3+ → Tb3+ and/or Ce3+ → Gd3+ → Tb3+ occurring, and the optimum emission was observed at x = 0.05 in BaGd0.75−xCexTb0.25B9O16. Under 147 nm excitation, Zn2+ sensitized the emission of Tb3+ and the optimum emission was obtained at x = 0.075 in Ba1−xZnxGd0.75Tb0.25B9O16, which could be due to the fact that the energy absorption relating to Zn2+ occurred and the absorbed energy was transferred to Tb3+ finally; Ce3+ depressed the luminescence of Tb3+, which could be attributed to the fact that Ce3+ has no absorption in vacuum ultraviolet region and the role of Gd3+ was weakened. Compared with BaGd0.75Tb0.25B9O16 and the commercial phosphor Zn2SiO4:Mn2+, the optimum phosphor Ba0.925Zn0.075Gd0.75Tb0.25B9O16 exhibited about 127% and 51% integrated emission intensity respectively and the shorter decay time of about 2.822 ms under 147 nm excitation.

Luminescence Properties of Nd 3+ ‐Doped AlF 3 ‐Based Fluoride Glass in the Vacuum Ultraviolet Region

2020 ◽  
Vol 257 (8) ◽  
pp. 1900475
Author(s):  
Kohei Yamanoi ◽  
Yuki Minami ◽  
Toshihiko Shimizu ◽  
Nobuhiko Sarukura ◽  
Takahiro Murata ◽  
...  
Keyword(s):  
Vacuum Ultraviolet ◽  
Fluoride Glass ◽  
Luminescence Properties ◽  
Ultraviolet Region ◽  
Vacuum Ultraviolet Region

Anisotropic Optical Spectra of YAlO3(YAP) Single Crystals in the Vacuum Ultraviolet Region. III. Spectra of Optical Constants

1994 ◽  
Vol 63 (6) ◽  
pp. 2269-2289 ◽  
Author(s):  
Tetsuhiko Tomiki ◽  
Yoshiiku Ganaha ◽  
Tomoyoshi Futemma ◽  
Tohru Shikenbaru ◽  
Hiroo Kato ◽  
...  
Keyword(s):  
Single Crystals ◽  
Optical Constants ◽  
Vacuum Ultraviolet ◽  
Optical Spectra ◽  
Ultraviolet Region ◽  
Vacuum Ultraviolet Region

Photofragmentation of gas-phase acetic acid and acetamide clusters in the vacuum ultraviolet region

2017 ◽  
Vol 147 (19) ◽  
pp. 194302 ◽  
Author(s):  
Marta Berholts ◽  
Hanna Myllynen ◽  
Kuno Kooser ◽  
Eero Itälä ◽  
Sari Granroth ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Gas Phase ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Region ◽  
Vacuum Ultraviolet Region
Sign in / Sign up

Export Citation Format

Share Document