Title :
Ultraviolet and Blue Upconversion Spectrum of Tm:GdVO4
Author :
Li, Yu-feng ; Ju, You-Lun ; Wang, Yue-zhu
Author_Institution :
Harbin Inst. of Technol., Harbin
Abstract :
The spectrum of UV and blue upconversion of Tm:GdVO4 is given and the phonon assistant excitation method is used to explain the light near 264 nm. The temperature-dependent intensity of UV light is analyzed. The excitation spectra of the material for the up-converted 264, 361and 440 nm luminescence band at 77 K and 293 K are presented.
Keywords :
gadolinium compounds; optical materials; phonons; photoluminescence; thulium; GdVO4:Tm; UV light; blue upconversion spectrum; excitation spectra; luminescence band; phonon assistant excitation method; temperature 293 K; temperature 77 K; temperature-dependent intensity; ultraviolet upconversion spectrum; wavelength 264 nm; wavelength 361 nm; wavelength 440 nm; Crystallization; Diode lasers; Energy states; Fluorescence; Glass; Laser excitation; Laser transitions; Photonic crystals; Solid lasers; Temperature;
Conference_Titel :
Lasers and Electro-Optics Society, 2007. LEOS 2007. The 20th Annual Meeting of the IEEE
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-0925-9
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2007.4382468
