The spectral properties (absorption and
fluorescence) of laser dyes (Rhodamine6G, Rhodamine 3GO and
Rhodamine B) mixture have been studied. This type of laser dye
belongs to the Xanthenes family, it has dissolved in chloroform
to prepare (1*10-5 M) in different ratio such as
(1R6G:1R3GO:1RB, 2R6G:1R3GO:1RB, 3R6G:1R3GO:1RB, 4R6G:1R3GO:1RB,
1R6G:2R3GO:1RB, 1R6G:3R3GO:1RB, 1R6G:4R3GO:1RB, 1R6G:1R3GO:2RB,
1R6G:1R3GO:3RB, 1R6G:1R3GO:4RB) at room temperature. The quantum
efficiency of the dissolved Rhodamine in chloroform has been
computed by using the above ratio and their results are as
follows (89%,92%, 93%,95%,92%,93%,94%,84%,84%,and 84%)
respectively. The Radiative lifetime have been computed as given
(0.188, 0.19,0.203,0.209,0.198,0.196,0.201,0.191,0.207 ,and
0.219 ns) respectively. Fluorescence lifetime have been
also computed as given
(0.167,0.174,0.189,0.198,0.182,0.183,0.189,0.160,0.174,and 0.184
ns) respectively. Keywords: Xanthenes dyes, Rhodamine, Laser
dye, Rhodamine 6G, Rhodamine B, Rhodamine 3GO |