Effect of Ag Nano particles on operational characteristic of a dye laser pumped by Nd:YAG

In this research, the effect of adding Nano silver in the active medium of a Rhodamine ۶G dye laser pumped by Nd:YAG laser on the laser line-width has been investigated. Using Fabry-Perot fringe method, the laser line-width was measured while pure Rhodamine ۶G used as active medium. After adding Nano silver with radius ۸ nm with different concentration from ۹.۳×۱۰^۱۰ to ۳.۵۳×۱۰^۱۱ atoms per cm³, measurements were repeated. Based on the experimental results, totally the line-width is decreased when Nano silver was added to active medium. For concentration ۲.۷۹×۱۰^۱۱ atom per cm³ we have maximum decrease in line-width.