Abstract
Solid-state dye-doped polymers are attractive alternative to the conventional liquid dye solutions. In this paper, nonlinear properties of the dye Acid Fuchsin has been studied. The third-order nonlinear optical properties of Acid Fuchsin dye in 1-butanol and dye-doped polymer film were measured by the Z-scan technique using 532 nm diode pumped Nd:Yag laser. This material exhibits negative optical nonlinearity. The dye at 0.4 mM concentration exhibited nonlinear refractive coefficient ( n 2 = −8.72 × 10 −8 and −10.308 × 10 −8 (cm 2/W) in liquid and solid media, respectively), nonlinear absorption coefficient ( β = −7.69 × 10 −4 and −8.294 × 10 −4 cm/W in liquid and solid media, respectively) and susceptibility ( χ (3) = 4.33 × 10 −6 and 5.13 × 10 −5 esu in liquid and solid media, respectively). These results show that Acid Fuchsin dye has potential applications in nonlinear optics.
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