Nonlinear Optical Properties of Ionic Thermotropic and Lyotropic Liquid Crystals
DOI:
https://doi.org/10.18372/1990-5548.80.18689Keywords:
іonic liquid crystals, viologen, spectroscopy, optical nonlinearity, dynamic gratingsAbstract
This work presents the analysis of experimental research on the optical and nonlinear optical properties of two different representatives of metal alkanoate-based liquid crystals. Namely, ionic lyotropic liquid crystals of potassium caprylate doped with electrochromic viologen additives, and anisotropic glasses of ionic thermotropic liquid crystals of cobalt alkanoates of the homologous series (n = 7, 9, 11) and their multicomponent mixtures. Prior to the nonlinear optical experiment, the optical absorption spectra of all samples were investigated. For proposed absorbing media, laser-induced dynamic grating recording under the action of nanosecond laser pulses has been realised, observed and analysed. The studied materials were found to exhibit cubic optical nonlinearity, with cubic nonlinear susceptibility χ(3) and hyperpolarizability γ values comparable to the best organic dyes. The possible mechanism of nonlinear response in the systems studied was considered on the basis of the data obtained. The nonlinear response mechanism is related to the non-linear polarisation of the π-electrons in the field of the laser radiation.
References
W. E. Woodmansee, “Aerospace Thermal Mapping Applications of Liquid Crystals,” Appl. Opt., vol. 7, pp. 1721–1727, 1968. https://doi.org/10.1364/AO.7.001721
T. L. Credelle, “Avionic Color Liquid Crystal Displays,” Recent Trends, SAE Transactions, vol. 96, pp. 1036–1041, 1987. https://doi.org/10.4271/871790
A. Abileah, R. Brinkley, and S. Thomsen, “Liquid crystal considerations for avionics AMLCD,” Proc. SPIE, vol. 3363, 1998, pp. 181–188.
I. Carlescu, ‘Introductory Chapter: Liquid Crystals’, Liquid Crystals – Self-Organized Soft Functional Materials for Advanced Applications. IntechOpen, Jan. 03, 2019. https://doi.org/10.5772/intechopen.82296
K. Nicholas, “Liquid crystals: Applications and industry,” Liquid Crystals Today, vol. 23, pp. 28–29, 2014. https://doi.org/10.1080/1358314X.2014.890798
A. P. Polishchuk and T. V. Timofeeva, “Metal-containing liquid-crystal phases,” Russian Chemical Reviews, no. 62, pp. 291–321, 1993. https://doi.org/10.1070/RC1993v062n04ABEH000019
A. V. Gridyakina, G. V. Klimusheva, and A. P. Polishchuk, “Physical properties of liquid crystals in lead decanoate systems,” Russian Journal of Physical Chemistry, no. 79, pp. 71–75, 2005.
A. B. Bordyug, G. V. Klimusheva, and A. P. Polishchuk, “Structure and intermolecular interactions in ionic liquid crystals doped with electrochromic viologen,” Russian Journal of Physical Chemistry, no. 79, pp. 66–70, 2005.
I. Yu. Polishchuk, L. G. Grineva, and A. P. Polishchuk, “Products of quaternization of 4,4′-Bipyridine with halogenated carboxylic acids. synthesis, structure, and photoreduction in the crystalline state,” Russian Journal of General Chemistry, vol. 68, no. 4, pp. 609–616, 1998.
A. B. Bordyuh, Yu. A. Garbovskiy, G. V. Klimusheva, “Dynamic grating recording in lyotropic ionic smectics of metal alkanoates doped with electrochromic impurities,” Optical Materials, vol. 31, pp. 1109–1114, 2009. https://doi.org/10.1016/j.optmat.2008.11.021
Yu. A. Garbovskiy, A. V. Gridyakina, and G. V. Klimusheva, “Tunable optical and nonlinear optical response of smectic glasses based on cobalt alkanoates,” Liquid Crystals, vol. 37, pp. 1411–1418, 2010.
S. V. Volkov, Spectroscopic investigations of molten salt systems, Pure and Appl. Chem., vol. 59, no. 5, pp. 1151–1164, 1987. https://doi.org/10.1351/pac198759091151
I. B. Bersuker, Electronic Structure and Properties of Transition Metal Compounds, London: Wiley, 1996, 352 p.
A. B. Bordyuh, Yu. A. Garbovskiy, and S. A. Bugaychuk, “Fast nolinear optical mechanisms in Bi-Layered cells composed by lyotropic ionic liquid crystals with dye and viologen films,” Molecular Crystals and Liquid Crystals, vol. 508, pp. 296–308, 2009. https://doi.org/10.1080/15421400903065788
T. Sakai, Y. Kawabe, and H. Ikeda, “Third order nonlinear optical properties of retinal derivatives,” Applied Physics Letters, vol. 56, pp. 411–413, 1990. https://doi.org/10.1063/1.102796
A. J. Cruz, K. Siam, C. Moore, M. Islam, and D. P. Rillema, “Dicyano and pyridine derivatives of retinal: Synthesis and vibronic, electronic, and photophysical properties,” The Journal of Physical Chemistry A., vol. 114(25), pp. 6766–6775, 2010. https://doi.org/10.1021/jp103749b
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