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Applications
Chiral azobenzene dyes
Chiral azobenzene dyes are used for producing phototunable bandgap materials (cholesteric liquid crystals)
Wavelengths graph
Note 1: Data on Helical Twisting Power (HTP) are approximate and are obtained with the material kept in dark for 24 hours.
Note 2: The letters R and S in the name of the material refer to right-hand and left-handed materials, respectively.
Note 3: The materials starting with AA in the name are diacrylates.




Chiral azobenzene dyes applications, such as phtotunable bandgaps, photoswicthable bandgaps, Optical recording, Image processing, 2D periodic sytictures

References

  1. U. Hrozhyk, S. V. Serak, N. V. Tabiryan, T. J. White, T. J. Bunning, “Optically switchable, rapidly relaxing cholesteric liquid crystals reflectors”, Optics Express, 18, 9651-9657 (2010).
  2. T.J. White, A.S. Freer, N.V. Tabiryan, and T.J. Bunning, “Photoinduced broadening of cholesteric liquid crystal reflectors”, J. Appl. Phys. 107, 073110 (1-6) (2010).
  3. Timothy J. White, Rebecca L. Bricker, Lalgudi V. Natarajan, Nelson V. Tabiryan, Lisa Green, Quan Li, and Timothy J. Bunning, ”Phototunable azobenzene cholesteric liquid crystal with 2000 nm range”, Advanced Functional Materials, 19, 1-5 (2009).
  4. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, T. J. Bunning, “Phototunable reflection notches of cholesteric liquid crystals”, J. Appl. Phys. 104, 063102(1-7) (2008).
  5. S. V. Serak, N. V. Tabiryan, G. Chilaya, A. Chanishvili, G. Petriashvili, “Chiral azobenzene nematics phototunable with a green laser beam”, Mol. Cryst. & Liq. Cryst. 488, 42–55 (2008).
  6. S. V. Serak, N. V. Tabiryan, T. J Bunning, “Nonlinear transmission of photosensitive cholesteric liquid crystals due to spectral bandwidth auto-tuning or restoration”, J. Nonlinear Opt. Physics & Mater., 16 (4), 1-14 (2007)
  7. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, T. J. Bunning, “Photoinduced isotropic state of cholesteric liquid crystals: novel dynamic photonic materials”, Adv. Mat., 19, 3244-3247 (2007).
  8. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, T. J. Bunning, “Periodic structures generated by light in chiral liquid crystals”, Optics Express, 15 (N15), 9273-9280 (2007).
  9. U. A. Hrozhyk, S. V. Serak, N. V. Tabiryan, T. J. Bunning “Optical tuning of the reflection of cholesterics doped with azobenzene liquid crystals”, Adv. Func. Mat. 17, 1735-1742 (2007).
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