Chinese Optics Letters, 2004, 2 (2): 02102, Published Online: Jun. 6, 2006
Temperature effect on emission lines and fluorescence lifetime of the 4F3/2 state of Nd:YVO4 Download: 574次
160.3380 laser materials 160.5690 rare earth doped materials 300.6280 spectroscopy fluorescence and luminescence
Abstract
By measuring the absorption and fluorescence spectra and the fluorescence lifetime of ^{4}F_{3/2} state of Nd^{3+} ions in YVO_{4} (2 at.-{\%}) crystal at different temperature, the effects of temperature on the spectra and the lifetime of ^{4}F_{3/2} state have been investigated. As the temperature is increased, the line width of the ^{4}F_{3/2}-->^4I_{11/2} transitions is found to increase and the spectral line toward the longer wavelength, which are duo to the ion-phonon interaction. The variation fluorescence lifetime of the ^{4}F_{3/2} state of Nd:YVO_{4} is found to be anomalous in the measured range 8-300 K. It is about 81 us at room temperature and decreases to 30 us at 8 K. The experimental results are explained by ascribing to the thermal mixing between the two Stark levels of ^{4}F_{3/2} state with different lifetime.
Yanli Mao, Mingju Huang, Changshun Wang. Temperature effect on emission lines and fluorescence lifetime of the 4F3/2 state of Nd:YVO4[J]. Chinese Optics Letters, 2004, 2(2): 02102.