Laser Beam Induces Reorientation in Nematic Liquid Crystals

Abstract:

Nematic liquid crystals (NLCs) can be easily reoriented by the laser beam at the temperature closed to the nematic–isotropic phase transition (TNI). At the temperature closed to TNI, the propagating mode of laser beam and the optically induced phase transition were explored by using a microscopic conoscope technique. This investigation demonstrates the formation of soliton at particular beam propagation modes. The interaction between nematic liquid crystals and the laser beam with different polarizations showed the nonlinearity in optical alignment.

• Periodical: Key Engineering Materials (Volumes 428-429)
• Pages: 224-227
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.428-429.224
• Online since: January 2010
• Authors: I Min Jiang, Yu Jen Chen, Wen Chi Hung, C.T. Kuo, D.J. Jang, Chia Chi Shih, Ming Shan Tsai
• Keywords: Liquid Crystal, Optical Induced Phase Transition, Reorientation

References

[1] I. C. Khoo and S. L. Zhuang: Appl. Phys. Lett. Vol. 30, (1980), p.895.

[2] I. Janossy and T. Kosa: Opt. Lett. Vol. 17, (1992), p.1183.

[3] M. Warenghem, J.F. Henninot, and G. Abbate: Opt. Exp. Vol. 2, (1998), p.483.

[4] M. Peccianti, A.D. Rossi, G. Assanto, A. D. Luca, and I. C. Khoo: Appl. Phys. Lett. Vol. 77, (2000), p.7.

[5] F. Bloisi, L. Vicari, and F. Simoni: Opt. commun. Vol. 76, (1990), p.261.

[6] M. S. Tsai, I. M. Jiang, C. Y. Huang, and C. C. Shih: Opt. Lett. Vol. 28, (2003), p.2357.

[7] Y. -J. Chen, Y. -S. Lin, I. -M. Jiang and M. -S. Tsai: Opt. Exp. Vol. 16, (2008), p.4078.