Abstract
Abstract
Azonapthol dye viz., (E)-4-(phenyldiazenyl)naphthalen-1-ol (C16H11N3O3) is synthesized via diazotization of p-nitro aniline and subsequent coupling with α-naphthol. 1H NMR spectrum is used to identify the position of protons in obtained compound. FTIR spectrum is used to assign the absorption bands of vibration bonds at the expected regions. Mass spectrum proved a good agreement with structure of the prepared azonaphthol dye. The third order optical nonlinear properties of the azonaphthol dye 4 dissolved in acetone viz., the nonlinear index of refraction and the nonlinear absorption are obtained using 473 nm laser beam via diffraction ring patterns at 42 mW and Z-scan at 5 mW techniques separately. High nonlinear refractive index, 10−6 cm2 W−1, is obtained via diffraction ring pattern. Optical limiting property of azonapthol dye 4 solution is tested and a limiting threshold value of 17 mW is obtained, and prove that the sample can be used as an optical limiter. The Fraunhofer approximations of the Fresnel-Kirchhoff theory have led to the diffraction ring patterns simulation where very good agreement have been obtained.
Subject
Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics
Cited by
36 articles.
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