TY - JOUR T1 - Nonlinear optical properties of fluorescein dye in the polymer matrix PVA TT - خواص اپتیکی غیر خطی ماده رنگ فلورسین در ماتریس پلیمری PVA JF - opsi JO - opsi VL - 23 IS - 0 UR - http://opsi.ir/article-1-1186-en.html Y1 - 2017 SP - 33 EP - 36 KW - nonlinear refractive index KW - dye KW - fluorescein and polymer N2 - Abstract- Dye lasers are tunable lasers and are under consideration. These materials have nonlinear optical properties such as nonlinear refractive index saturation absorption. In this work we used z-scan technique and UV.Vis spectroscopy to measure. The nonlinear refractive index and nonlinear absorption of dye fluorescein doped in PVA polymer. Measurement shown the nonlinear refractive index 0/00000006 and absorption wavelength 276 and 494 nm. M3 ER -