• Bhat, G. K.
• Aithal, Shubrajyotsna
• Aithal, P. S.

Abstract

aterials with exceptional third order nonlinear optical properties are critical to the continuing development of photonics and electro-optical devices such as those used in optical communications, networking, optical computation for signal processing, and data storage devices. The nonlinear optical material research is generally focussed on improving the efficiency of optical wavelength conversion, optical amplification, nonlinear absorption, refractive index changes etc. which are input light intensity dependent. During last few years, the organic dye-doped polymer films are getting more attention due to their advantages in fabricatingoptimum photonics devices. In this paper, we have studied the nonlinear optical properties like nonlinear absorption and nonlinear refraction of an azo dye Disperse Orange-25 (DO-25) doped in Polymethyl methacrylate-methacrylic acid (PMMA-MA) polymer matrix using open aperture and closed aperture Z-scan experimental methods for continuous wave (CW) laser input. The optical limiting properties of these films are also studied using Type 1 and Type 2 configurations at different input power using continuous wave (CW) laser beams of 532 nm wavelength.The nonlinear absorption coefficient, nonlinear refractive index, and saturated output power for type 1 and type 2 optical limiting are determined. ; Other ; {"references": ["1., H. S., & Miyata, S. (1996). Nonlinear optics of organic molecules and polymers.CRC press. 2., J. D., He, G. S., & Prasad, P. N. (1996). Nonlinear multiphoton processes in organic and polymeric materials. Reports on Progress in Physics, 59(9), 1041. 3., A. J., & Saadon, H. L. (2013). Nonlinear optical and optical limiting properties of new structures of organic nonlinear optical materials for photonic applications. Chinese Optics Letters, 11(4), 041902. 4., J.W., Mansour, K., Mander, S.R., Perry, K. J., Alverez, D. & Choong, I. (1994). Enhanced reverse saturable absorption and optical limiting in heavy-atom-substituted phthalocyanines, Opt. Lett., 19, 625-627. 5., J. S., Pong, R. G., Flom, S. R., Heckmann, H., & Hanack, M. (2000). Effect of axial substitution on the optical limiting properties of indium phthalocyanines. The Journal of Physical Chemistry A, 104(7), 1438-1449. 6., W., Byrne, H., Dennis, W. M. and Kelly, J. M. (1985). Reverse Saturable absorption in tetraphenylporphyrines, Opt. Commun., 56, 25-29, 1985. 7., A., Ravikanth, M. and Kumar, G.R. (1996). Optical limiting in short chain basket handleporphyrins, Chem. Phys. Lett., 263, 241-246, 1996. 8., S., Mohan, D., & Ghoshal, S. K. (2008). Measurement of nonlinear properties and optical limiting ability of Rhodamine 6G doped silica and polymeric samples. Optics Communications, 281(10), 2923-2929. 9., J., Kozich, V.P. and Marcano, A.O. (1994). Thermal lensing resulting from one and two-photon absorption studied with a two color time-resolved Z-scan. Opt. Lett., 19, 171-173. 10., R. R., & Alkondan, R. (2010). Nonlinear characterization of Mercurochrome dye for potential application in optical limiting. Opt. Appl. XL, 187-196. 11., R. K., & Ramalingam, A. (2009). Nonlinear characteristic and optical limiting effect of oil red O azo dye in liquid and solid media. Journal of Modern Optics, 56(9), 1096-1102. 12., S., Kubo, T., Kurokawa, Y. and Suzuki, K. (1998). Third-order nonlinear optical properties of Disperse Red 1 and Au nanometer-size particle-doped alumina films prepared by sol-gel method.Thin Solid Film, 322, 233-237. 13., M. D., &Ajji, Z. (2011). Optical limiting behavior of disperse red 1 dye doped polymer. Optics & Laser Technology, 43(5), 934-937. 14., L. & Sargent, E. H. (2001). Azobenzenes for photonic network applications: Third nonlinear optical properties. J. Material Science: Materials in Electronics, 12, 483-489. 15., K., Manjunatha, K. B., Sujith, K. V., Umesh, G., Kalluraya, B., &Rao, V. (2012). Third order optical nonlinearity and optical limiting studies of propane hydrazides. Optical Materials, 34(11), 1751-1757. 16. Rao, S., Naga Srinivas, N.K.M. and Narayana Rao, D. (2002). Nonlinear absorption and excited state dynamics in Rhodamine B studied using Z-scan and degenerate four wave mixing techniques, Chem. Phys. Lett., 361, 439-445. 17. Tripathy, R., Justin Rajesh, R., Prem, B.B. & Subrahamanyam, (2002).Optical nonlinearity of organic dyes as studied by Z-scan and transient grating techniques.Procs. Indian Acad. Sci. (Chem. Sci.), 114(6), 557-564. 18., V. S., & Ramalingam, A. (2011). Third order optical nonlinearities and spectral characteristics of methylene blue. Journal of Quantum Information Sc(...)

Topics

• impedance spectroscopy
• polymer
• Indium