Laser-induced mechanical bending in azo dye-doped liquid-crystal elastomers Report as inadecuate




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P. Palffy-Muhoray ; H. Finkelmann ;Superficies y vacío 2006, 19 (3)

Author: M. A. Camacho-Lopez

Source: http://www.redalyc.org/


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Superficies y vacío ISSN: 1665-3521 alex@fis.cinvestav.mx Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. México Camacho-Lopez, M.
A.; Palffy-Muhoray, P.; Finkelmann, H. Laser-induced mechanical bending in azo dye-doped liquid-crystal elastomers Superficies y vacío, vol.
19, núm.
3, septiembre, 2006, pp.
30-34 Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=94219306 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Superficies y Vacío 19(3), 30-34, septiembre de 2006 ©Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales Laser-induced mechanical bending in azo dye-doped liquid-crystal elastomers M.
A.
Camacho-Lopez Coordinacion de Posgrado, Facultad de Medicina, Universidad Autonoma del Estado de Mexico, Paseo Tollocan s-n esq.
Jesus Carranza, Toluca Edo.
de Mexico 50120, Mexico. Liquid Crystal Institute, Kent State University, Kent, OH 44240, USA P.
Palffy-Muhoray Liquid Crystal Institute, Kent State University, Kent, OH 44240, USA H.
Finkelmann Institut für Makromolekulare Chemie, Universität Freiburg, D79104 Freiburg, Germany Laser-induced deformation (bending) in azo dye-doped liquid-crystal elastomer thick films is demonstrated.
We directly measure the laser-power-dependent deformation-strength (driving force).
The deformation-relaxation time is also measured.
We have observed that it recovers within 300 ms after the excitation laser pulse is gone, this gave a constant time of 75 ms.
By estimating the optical electric field value of the laser pulses used in our experiments, we can compare our results with those obtained in polyurethane elastomers studied by the electr...





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