研究目的
Investigating the influence of Ag nanoparticles on the small-signal gain and saturation energy density of an oscillator-amplifier dye laser.
研究成果
The small signal gain and saturation energy density can be controlled by adding silver nanoparticles to the solution of Rhodamine 6 G in a dye laser amplifier. The results indicated that with the increase of the concentration of Ag nanoparticles, the small signal gain decreases and the saturation energy density increases.
研究不足
The study is limited to the effects of Ag nanoparticles on the amplifying parameters of a dye laser amplifier and does not explore the effects of other nanoparticles or different laser configurations.
1：Experimental Design and Method Selection:
The study uses an oscillator-amplifier dye laser configuration to measure the small-signal gain and saturation energy density with varying concentrations of Ag nanoparticles in Rhodamine 6 G solution.
2：Sample Selection and Data Sources:
Ag nanoparticles with concentrations of
3：5 × 1011, 86 × 1011, and 36 × 1011 cm?3 were mixed into Rhodamine 6 G solution. List of Experimental Equipment and Materials:
A second harmonic Q-switched Nd:YAG laser, Rhodamine 6 G in methanol solvent, and Ag Nano powder were used.
4：Experimental Procedures and Operational Workflow:
The dye laser was based on the Littrow configuration, and the amplifier gain element was a cuvette.
5：Data Analysis Methods:
The small-signal gain and saturation energy density were obtained by fitting the experimental data with the Frantz and Nodvik model using MATLAB 7.
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