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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 12 — Jun. 8, 2009
  • pp: 9637–9647

Observation of a photo wetting effect on anisotropic liquid-solid interfaces

Guillaume Goubert and Tigran Galstian  »View Author Affiliations


Optics Express, Vol. 17, Issue 12, pp. 9637-9647 (2009)
http://dx.doi.org/10.1364/OE.17.009637


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Abstract

This paper reports on the experimental observation of an anisotropic photo controlled wetting effect. We discuss how capillary propagation of nematic liquid crystals in a “sandwich” cell is blocked in areas exposed to light. We postulate that the underlying mechanism is related to the optical reorientation of molecules on the surface of the surrounding solid, which in turn, forces a corresponding reorientation of the liquid crystal molecules. The corresponding orientation deformation energy of the liquid then changes the balance of forces and the corresponding capillary action.

© 2009 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(230.5440) Optical devices : Polarization-selective devices
(310.6860) Thin films : Thin films, optical properties
(350.6670) Other areas of optics : Surface photochemistry

ToC Category:
Materials

History
Original Manuscript: February 19, 2009
Revised Manuscript: April 11, 2009
Manuscript Accepted: April 19, 2009
Published: May 26, 2009

Citation
Guillaume Goubert and Tigran Galstian, "Observation of a photo wetting effect on anisotropic liquid-solid interfaces," Opt. Express 17, 9637-9647 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-12-9637


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References

  1. M. K. Chaudhury and G. M. Whitesides, "How to make water run Uphill," Science 256, 1539-1541 (1992). [CrossRef] [PubMed]
  2. R. Fürstner, W. Barthlott, C. Neinhuis, P. Walzel, "Wetting and Self-Cleaning Properties of Artificial Superhydrophobic Surfaces," Langmuir 21, 956-961 (2005). [CrossRef] [PubMed]
  3. A. M. Cazabat, F. Heslot, S. M. Troian, P. Carles, "Fingering instability of thin spreading films driven by temperature gradients," Nature 346, 824-826 (1990). [CrossRef]
  4. M. Schneemilch, W. J. J. Welters, R. A. Hayes, J. Ralston, "Electrically Induced Changes in Dynamic WettabilityElectrically Induced Changes in Dynamic Wettability," Langmuir 16, 2924-2927 (2000). [CrossRef]
  5. T. D. Blake, A. Clarke, E. H. Stattersfield, "An Investigation of Electrostatic Assist in Dynamic Wetting," Langmuir 16, 2928-2935 (2000). [CrossRef]
  6. S. Kataoka and M. A. Anderson, "Capillary rise between two TiO2 thin-films: evaluating photo-activated wetting," Thin Solid Films 446, 232-237 (2004). [CrossRef]
  7. M. Miyauchi, N. Kieda, S. Hishita, T. Mitsuhashi, A. Nakajima, T. Watanabe, K. Hashimoto, "Reversible wettability control of TiO2 surface by light irradiation," Surface Science 511, 401-407 (2002). [CrossRef]
  8. R. Wang, K. Hashimoto, A. Fujishima, M. Chikuni, E. Kojima, A. Kitamura, M. Shimohigoshi, T. Watanabe, "Light-induced amphilic surfaces," Nature 388, 431-443 (1997). [CrossRef]
  9. J. Y. Shin and N. L. Abbott, "Using Light to Control Dynamic Surface Tensions of Aqueous Solutions of Water Soluble Surfactants," Langmuir 15, 4404-4410 (1999). [CrossRef]
  10. K. Ichimura and S-K. Oh, M. Nakagawa, "Light-Driven Motion of Liquids on a Photoresponsive Surface," Science 288, 1624-1626 (2000). [CrossRef] [PubMed]
  11. Z. Sekkat, M. Biichel, H. Orendi, H. Knobloch, T. Seki, S. Ito, J. Koberstein, and W. Knoll, "Anisotropic alignment of a nematic liquid crystal controlled by a polarization sensitive Langmuir-Blodgett command layer," Opt. Commun. 111, 324-330 (1994). [CrossRef]
  12. D. Dumont, T. Galstian, S. Senkow, A. M. Ritcey, "Liquid Crystal Photoalignment using New Photoisomerisable Langmuir-Blodgett Films," Mol. Cryst. Liq. Cryst. 375, 341-352 (2002). [CrossRef]
  13. V. Chigrinov, V. Kozenkov, and H-S. Kwok, Photoalignment of Liquid Crystalline Materials, (Wiley, 2008).
  14. E. Belamie, G. Mosser, F. Gobeaux, and M. M. Giraud-Guille, "Possible transient liquid crystal phase during the laying out of connective tissues: alpha-chitin and collagen as models," J. Phys.: Condens. Matter 18, S115-S129 (2006). [CrossRef]
  15. V. P. Pham, T. V. Galstyan, A. Granger, and R. Lessard, "Novel azo dye-doped poly (methyl methacrylate) films as optical data storage media," Jpn. J. Appl. Phys. 36, special issue, Part 1, No. 1B, 429-438 (1997). [CrossRef]
  16. A. W. Adamson and A. P. Gast, Physical Chemistry of Surfaces, (Wiley, New York, 1997).
  17. A. Yavrian, T. V. Galstian, and M. Piché, "Circularly polarized light-induced rearrangement of optical axis in photoanisotropic recording media," Opt. Eng. 41(04), 852-855 (2002). [CrossRef]
  18. X. Tong, G. Wang, Y. Zhao, "Photochemical Phase Transition versus Photochemical Phase Separation," J. Am. Chem. Soc. 128, 8746-8747 (2006). [CrossRef] [PubMed]
  19. E. Grelet and H. Bock, "Control of the orientation of thin open supported columnar liquid crystal films by the kinetics of growth," Europhys. Lett. 73 (5), 712-718 (2006). [CrossRef]
  20. T. T.-Katona and A. Buka, "Nematic-liquid-crystal-air interface in a radial Hele-Shaw cell: Electric field effects," Physical Review E 67, 04171(1-7), (2003).
  21. P. G. de Gennes and J. Prost, The Physics of Liquid Crystals, Second Edition (Oxford University Press, 1995).
  22. L. M. Blinov and V. G. Chigrinov, Electrooptic Effects in Liquid Crystal Materials, (Springer, 1994). [CrossRef]

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