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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 5 — Feb. 10, 2004
  • pp: 1147–1148

Hartley’s fractional crystallization and Weigert’s effect

Tariel D. Ebralidze and Nadia A. Ebralidze  »View Author Affiliations


Applied Optics, Vol. 43, Issue 5, pp. 1147-1148 (2004)
http://dx.doi.org/10.1364/AO.43.001147


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Abstract

In the course of slow evaporation of an azo-dye chrysophenine-saturated gelatin-water solution, dye crystals that developed two different interference colors were observed in the gelatin; the colors were yellow and blue. The crystals that produce a blue interference color undergo disintegration on exposure to non-polarized light from a mercury lamp.

© 2004 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(160.1190) Materials : Anisotropic optical materials
(160.2900) Materials : Optical storage materials
(260.0260) Physical optics : Physical optics
(260.1180) Physical optics : Crystal optics
(260.5430) Physical optics : Polarization

History
Original Manuscript: June 16, 2003
Revised Manuscript: September 29, 2003
Published: February 10, 2004

Citation
Tariel D. Ebralidze and Nadia A. Ebralidze, "Hartley’s fractional crystallization and Weigert’s effect," Appl. Opt. 43, 1147-1148 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-5-1147


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References

  1. T. D. Ebralidze, A. N. Mumladze, “Light-induced anisotropy in azo-dye-colored materials,” Appl. Opt. 29, 446–447 (1990). [CrossRef] [PubMed]
  2. T. D. Ebralidze, A. N. Mumladze, “Spectral transmission Polaroids of the film with photoinduced anisotropy,” Opt. Spectrosc. 68, 634–635 (1990).
  3. T. D. Ebralidze, N. A. Ebralidze, A. N. Mumladze, “Photoinduction of anisotropic grains in organic compounds,” Appl. Opt. 37, 6161–6163 (1998). [CrossRef]
  4. T. D. Ebralidze, N. A. Ebralidze, M. A. Bazadze, “Weigerts effect mechanism observed in dyes,” Appl. Opt. 41, 78–79 (2002). [CrossRef] [PubMed]
  5. G. Hartley, “The cis form of azobenzene and the velocity of the thermal cis → trans conversion of azobenzene and some derivatives,” J. Chem. Soc. Am.633–641 (1938).

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