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

Abstract

onlinear optical materials with optimum properties are essential in continuous developmentof photonic and electro-optical devices, used in optical communications, networking, opticalcomputation for signal processing, and data storage equipments. The changing trend is to useorganic materials/dyes that exhibit exceptional nonlinear optical properties instead ofconventional materials which have comparatively low nonlinear properties. These organicmaterials/dyes are easy to prepare in solution or solid form. The resulting organic material has a low dielectric constant, eliminating the need for poling while maintaining the refractive index. However, these organic materials have few of the drawbacks inherent in the processing of comparable inorganic materials like of intense light induced degradation or bleaching and aggregation at higher dye concentration. In order to overcome these drawbacksand for effective use of highly nonlinear dyes, the dye molecules are doped in polymermatrix. This idea of dye-doped polymer material matrix may increase the concentration ofabsorptive or fluorescence centers as well as the opto-chemical and opto-physical stability.In this paper, we have discussed the strategic advantages of dye-doped polymer nonlinearmaterials in comparison with organic and inorganic nonlinear materials for optical phase conjugation and all optical switches in future photonics technology. This was done bystudying the linear optical properties and nonlinear optical Phase Conjugation properties oftwo azo dye-doped polymer films by considering organic dyes disperse orange (DO-25) anddisperse yellow (DY-7) doped in a polymer matrix Polymethyl methacrylate methacrylic acid(PMMA-MA). The nonlinear optical phase conjugation properties are studied usingDegenerate Four Wave Mixing set-up using 532 nm wavelength CW laser beam. The effectof dye concentration, intensity of backward, forward pump, and inter beam angle betweenprobe and forward pump beam on phase conjugation reflectivity are also studied andcompared. ; Other ; {"references" : [ "[1] Albota M., Beljonne D., Perry J. W., Subramanium G., and Xu C., 1998, Science, 281, pp 1653.", "[2] Bindhu C. V., Harilal S. S., Nampoori V. P. N., and Vallabhan C. P. G., 1999, Studies of nonlinear absorption and aggregation in aqueous solutions of Rhodamine 6G using a transient thermal lens technique, J. Phys. D, 32, pp 407–411.", "[3] Fisher R. A., 1983, Optical Phase Conjugation, (Academic Press, New York, NY, USA), pp 1-30.", "[4] Geethakrishnan T. and Palanisamy P. K., 2006, Degenerate four wave mixing experiments in Methyl green dye-doped gelatin film, Optik 117 (6), pp 282-286.", "[5] Giuliano C. R. and Hess L. D., 1967, Nonlninear Absorption of Light: Optical Saturation of Electronic Transitions in Organic Molecules with High Intensity Laser Radiation, IEEE J. Quant. Electron. QE-3, pp 338-367.", "[6] He G. S., Lx Y., Chi Y. P., Li M., and Prasad P. N., 1997, Studies of two-photon pumped frequency up-converted lasing properties of a new dye material, J. Appl. Phys., 81, pp 2529- 2537.", "[7] Hutchings D. C. and Van Stryland E. W. 1992, Nondegenerate two-photon absorption in zinc blende semiconductors," J. Opt. Soc. Am. B, B9, pp 2065-2074.", "[8] Miniewicz A., Bartkiewicz S., and Parka J., 1997, Optical phase conjugation in dyedoped liquid crystal, Opt. Commun. 149, pp 89–95.", "[9] Mukherjee N., Mukherjee A., and Reinhardt B. A., 1997, Measurement of two-photon absorption cross sections of dye molecules doped in thin films of polymethylmethacrylate, Appl .Phys. Lett., 70, pp 1524-1526.", "[10] Olga P. V., Lim J. H., Hagan D. J. and Van Strayland E. W., 1998, Nonlinear light absorption of polymethine dyes in liquid and solid media, J. Opt. Soc. Am. B, 15, pp 802- 809.", "[11] Perry J. W., 1997, in Nonlinear Optics of Organic Molecules and Polymers, eds. H. S. Nalwa and S. Miyata, ( CRC Press, Boca Raton, Fla.), Chap. 13, pp 813-840.", "[12] Reinhardt B. A., Brott L. L., Clarson S. J., Kannan R., and Dillard A. G., 1997, In Mater. Res. Soc. Sympo. Proc. 479, MRS, pp 3-8.", "[13] Shen Y. R., 1975, The Principles of Nonlinear Optics, Wiley, New York, pp 450.", "[14] Shubrajyotsna Aithal, Aithal P. S. and Bhat N. G, 2011, Study of nonlinear absorption in a dye doped polymer film due to frequency up-converted fluorescence,” Proceedings of the International Conference on Laser, Material Science and Communication, India, ed. U. Chatterjee and P.K. Chakrabarti, ISBN : 978-93-80813-14-1 pp 107-109.", "[15] Shubrajyotsna Aithal, Sreeramana Aithal and Gopalkrishna Bhat, 2012, Phase Conjugation in Two Photon Absorbing Dye films by Degenerate Four-wave Mixing, 3rd International Conference on Photonics 2012, Penang, Malaysia. Published in IEEEXplore ISBN: 978-1-4673-14(...)

Topics

• impedance spectroscopy
• polymer
• phase
• experiment
• thin film
• zinc
• dielectric constant
• semiconductor
• Energy-dispersive X-ray spectroscopy
• additive manufacturing
• liquid crystal