Stilbene 420激光染料的光谱特性分析

Analysis on the Spectral Properties of the Stilbene 420 Laser Dye

配制了Stilbene 420染料溶液。测量了其吸收光谱。以调Q倍频Nd∶YAG激光为抽运源,实现了对Stilbene 420染料的激光光谱和荧光光谱的分析。激光光谱在425nm处获得最强峰值,半峰高宽(FWHM)为1nm,光谱范围为420～440nm。荧光光谱峰值在428.5nm,与激光最强峰值相差3.5nm。最高染料转换效率为9.26%。

Stilbene 420 dye solution was prepared and the laser dye absorption spectrum was measured. Q-switched frequency- doubling Nd ： YAG laser was used as the pumping source to realize the stilbene 420 dye laser and fluorescence spectra analysis. Laser spectroscopy reached the strongest peak at 425 nm and full width at half maximun （FWHM） is 1 nm. Spectral range was from 420 nm to 440 nm. Fluorescence spectrum peak was at 428. 5 nm. Compared with the strongest peak laser, the wavelength difference was 3.5 nm. The highest dye conversion efficiency was 9. 26%.