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

Abstract

onlinear optical phase conjugation by degenerate four-wave mixing (DFWM) is an important technique with applications in many fields of science and technology including image transmission, optical image processing, optical filtering, and laser resonators. In optimum condition, when two counter-propagating and intense light beams interact with a nonlinear medium, together with a less intense third beam, a fourth beam is generated from the medium, which will be the phase conjugation of the third beam. This technique is called four-wave mixing. In this paper, the optical phase conjugation property of disperse yellow (DY-7) dye-doped polymer films is studied using degenerate four-wave mixing method and the dependence of phase conjugated signal reflectivity on various parameters viz., dye concentration, the intensity of backward pump, forward pump, and inter-beam angle between the probe and forward pump beam on phase conjugation reflectivity are studied and presented using a low power continuous wave laser at 532 nm wavelength. ; Other ; {"references": ["1., Y. R. (1975). The Principles of Nonlinear Optics, Wiley, New York, p. 450. 2., J. W. (1997). Nonlinear Optics of Organic Molecules and Polymers, eds. Nalwa, H. S. and Miyata, S. (CRC Press, Boca Raton, Fla.), Ch. 13, 813-840. 3., R. A. (1983). Optical Phase Conjugation, (Academic Press, New York, NY, USA), pp. 1-30. 4., A. (1978). Phase conjugate optics and real-time holography, IEEE J Quantum Electron. QE-14(9), 650660. 5., H., Horikoshi, A., Fujiwara, H. &Nakagawa, K.(2002). Phase conjugation in saturable absorbing dye films by degenerate four-wave mixing and holographic processes, Optical Review,9(3),106-111. 6., T. & Palanisamy, P. K. (2006). Degenerate four wave mixing experiments in Methyl green dye-doped gelatin film, Optik, 117(6), 282-286. 7., P. S., Singh, R. P. & Rao, D. N. (2003). Optical limiting due to frequency up-converted fluorescence in DASPB dye doped polymer matrix. Proceedings of SPIE, 4797, 229-239. 8., R. P., Aithal, P. S. & Rao, D. N. (2003). Optical limiting studies of Disperse Orange and Disperse Yellow in PMMA-MA matrix.Proc. of SPIE, 4797, 52-58. 9. Aithal, Aithal, P. S. & Bhat, G. K. (2012).Study of Degenerate Four-Wave Mixing in Disperse Orange Dye-doped Polymer Film, Advanced Materials Research Journal, 584, 526-530. doi:10.4028/www.scientific.net /AMR.584.526. 10. Aithal, Aithal, P. S. & Bhat, G. K.(2015),Comparative Study on Azo dye-doped Polymer Films for Optical Phase Conjugation.International Journal of Science and Research (IJSR), 4(4), 436-441. DOI:10.5281/zenodo.61724. 11., A. T., Subramanian, C. K., Narayanan, P. S., Sajan, M. R. (1992). Optical phase Conjugation in methylene blue films, Applied Optics, 31(24), 4905-4906. 12., T. & Palanisamy, P. K., (2005). Generation of phase-conjugate wave in acid blue 7 dye-doped gelatin film. Current Science, 89(11), 1894-1898. 13., G.S. (2002). Review on Optical phase conjugation: principles, techniques, and applications, Progress in Quantum Electronics, 26, 131. 14., K. C. Tou, T.Y. &Ng, S. W. (1998). Hot-press molded PMMA matrix for solid-state dye lasers.Applied Optics, 37, 6381-6385. 15., T. & Palanisamy, P. K. (2006). Optical phase-conjugation in erioglaucine dye-doped thin film. Pramana - journal of physics, 66(2), 473. 16., T. & Palanisamy, P. K. (2005). Demonstration of optical phase-conjugation in methyl green dye-doped thin film. American Journal of Applied Sciences, 2(8), 1228-1231. 17., A., Bartkiewicz, S. & Parka, J. (1997).Optical phase conjugation in dye-doped liquid crystal. Opt. Commun. 149, 89. 18. Aithal, Aithal, P. S. & Bhat, G. K. (2013). Degenerate four-wave mixing in DASPB dye-doped polymer film,published in Part IV Quantum Optics, Chapter 12, Advances in Laser Physics and Technology, Edited by Man Mohan, Anil Kumar Maini, Aranya A. Bhattacherjee and Anil K. Razdan under the imprint of Foundation Books, Cambridge University Press India Pvt Ltd., pp. 179 - 195, ISBN: 978-93-844634-1-0.,DOI : 10.5281/zenodo.62048. 19., B. R., Venkateswarlu, P. &George, M. C., (1991). Laser induced gratings in styryl dye. Opt. Commun., 84, 334. 20., H. & Nakagawa K. (1985). Phase conjugation in fluorescein film by degenerate four-wave mixing and holographic process, Optics communications, 55, 386390. 21., C. V. Harilal, S. S. Nampoori, V. P. N. & Vallabhan, C. P. G. (1999). Studies of nonlinear absorption and aggregation in aqueous solutions of Rhodamine 6G using a transient thermal lens technique.J. (...)

Topics

• impedance spectroscopy
• polymer
• phase
• experiment
• thin film
• laser emission spectroscopy
• Energy-dispersive X-ray spectroscopy
• liquid crystal