OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13118–13125

Biphotonic-induced reorientation inversion in azo-dye-doped liquid crystal films

Hui-Chi Lin, Chia-Wei Chu, Ming-Shian Li, and Andy Ying-Guey Fuh  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 13118-13125 (2011)
http://dx.doi.org/10.1364/OE.19.013118


View Full Text Article

Enhanced HTML    Acrobat PDF (1010 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The reorientation inversion of liquid crystal molecules in azo-dye-doped liquid crystal (ADDLC) films irradiated by biphotonic (green and red light) lasers is studied using the self-phase-modulation method. The results show that the induced change of refractive index (∆n) in an ADDLC cell illuminated with a fixed intensity of green light increases with the red-light intensity. Notably, the value of ∆n is initially negative, and becomes positive when the intensity of the red laser is increasing. It is due to the fact that an extra positive torque is exerted on the LCs, which is produced by cis-isomers upon absorbing red light to compensate the negative torque induced by the excitation of the green light.

© 2011 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials

ToC Category:
Materials

History
Original Manuscript: April 8, 2011
Revised Manuscript: June 7, 2011
Manuscript Accepted: June 12, 2011
Published: June 22, 2011

Citation
Hui-Chi Lin, Chia-Wei Chu, Ming-Shian Li, and Andy Ying-Guey Fuh, "Biphotonic-induced reorientation inversion in azo-dye-doped liquid crystal films," Opt. Express 19, 13118-13125 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-14-13118


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. I. Jánossy and T. Kósa, “Influence of anthraquinone dyes on optical reorientation of nematic liquid crystals,” Opt. Lett. 17(17), 1183–1185 (1992). [CrossRef] [PubMed]
  2. I. Jánossy, “Molecular interpretation of the absorption-induced optical reorientation of nematic liquid crystals,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 49(4), 2957–2963 (1994). [CrossRef] [PubMed]
  3. P. Yang, J. Shan, L. Liu, and L. Xu, “Photo-induced reorientation inversion in cis-enriched azo-dye doped liquid crystals in the isotropic phase,” J. Phys. D Appl. Phys. 42(8), 085116 (2009). [CrossRef]
  4. T. Kósa and I. Jánossy, “Anomalous wavelength dependence of the dye-induced optical reorientation in nematic liquid crystals,” Opt. Lett. 20(11), 1230–1232 (1995). [CrossRef] [PubMed]
  5. M. Becchi, I. Janossy, D. S. Shankar Rao, and D. Statman, “Anomalous intensity dependence of optical reorientation in azo-dye-doped nematic liquid crystals,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 69(5), 051707 (2004). [CrossRef] [PubMed]
  6. I. Jánossy and L. Szabados, “Optical reorientation of nematic liquid crystals in the presence of photoisomerization,” Phys. Rev. E Stat. Phys. Plasmas Fluids Relat. Interdiscip. Topics 58(4), 4598–4604 (1998). [CrossRef]
  7. E. Benkler, I. Jánossy, and M. Kreuzer, “Control of the orientational nonlinearity through photoisomerization in dye doped nematics,” Mol. Cryst. Liq. Cryst. (Phila. Pa.) 375, 701–711 (2002). [CrossRef]
  8. X. Liu, P. Yang, L. Ji, L. Liu, and L. Xu, “The dynamic influence of photoisomerization on optical reorientation in absorbing isotropic liquid crystals,” Opt. Express 14(24), 11709–11714 (2006). [CrossRef] [PubMed]
  9. P. Wu, B. Zou, X. Wu, J. Xu, X. Gong, G. Zhang, G. Tang, and W. Chen, “Biphotonic self-diffraction in azo-doped polymer film,” Appl. Phys. Lett. 70(10), 1224–1226 (1997). [CrossRef]
  10. C.-R. Lee, T.-S. Mo, K.-T. Cheng, T.-L. Fu, and A. Y.-G. Fuh, “Electrically switchable and thermally erasable biphotonic holographic gratings in dye-doped liquid crystal films,” Appl. Phys. Lett. 83(21), 4285–4287 (2003). [CrossRef]
  11. H.-C. Lin, J.-R. Wang, W.-Y. Wu, and A. Y.-G. Fuh, “Biphotonic effect of azo-dye-doped liquid crystals using the sequential Z-scan technique,” Opt. Commun. 281(11), 3183–3189 (2008). [CrossRef]
  12. A. Y.-G. Fuh, H.-C. Lin, T.-S. Mo, and C.-H. Chen, “Nonlinear optical property of azo-dye doped liquid crystals determined by biphotonic Z-scan technique,” Opt. Express 13(26), 10634–10641 (2005). [CrossRef] [PubMed]
  13. L. Marrucci, D. Paparo, P. Maddalena, E. Massera, E. Prudnikova, and E. Santamato, “Role of guest-host intermolecular forces in photoinduced reorientation of dyed liquid crystals,” J. Chem. Phys. 107(23), 9783–9793 (1997). [CrossRef]
  14. S. D. Durbin, S. M. Arakelian, and Y. R. Shen, “Laser-induced diffraction rings from a nematic-liquid-crystal film,” Opt. Lett. 6(9), 411–413 (1981). [PubMed]
  15. L. Lucchetti, M. Gentili, F. Simoni, S. Pavliuchenko, S. Subota, and V. Reshetnyak, “Surface-induced nonlinearities of liquid crystals driven by an electric field,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 78(6), 061706 (2008). [CrossRef] [PubMed]
  16. H. Zhang, S. Shiino, A. Kanazawa, O. Tsutsumi, T. Shiono, and T. Ikeda, “Photoinduced reorientation and thermal effects in an oligothiophene-doped liquid crystal system,” J. Appl. Phys. 91(9), 5558–5563 (2002). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Supplementary Material


» Media 1: MPG (9829 KB)     

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited