Skip to main content
SpringerLink
Log in

Selective modulation of infrared radiation by an Al2O3 particles — liquid crystal system

  • Published:
Journal of Applied Spectroscopy Aims and scope

We have developed a dual-frequency liquid crystal consisting of 4-n-pentyl-4′-cyanobiphenyl (5CB), 4-hexyloxyphenyl-4′-hexyloxy-3-nitrobenzoate (C2), and 4-butyl-4′-(hexyloxyphenyloxycarbonyl)phenyl carbonate (H22). We have measured the frequency dependences of the longitudinal and transverse components of the dielectric constant of the mixture and we have determined the frequency regions of positive and negative dielectric anisotropy. We show that for certain changes in the frequency of the applied electric field while the magnitude of the field remains the same, the transmission region of the Al2O3 particles — dual-frequency liquid crystal system switches from one wavelength to the other. The experimental results are explained by the optical homogeneity of the system in a narrow wavelength interval when the refractive indices of the particle material and the matrix are close, and also by reorientation of the liquid crystal molecules as the frequency of the applied voltage changes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. T. D. Ibragimov, Zh. Prikl. Spektrosk., 76, No. 5, 793–796 (2009).

    Google Scholar 

  2. E. M. Voronkova, V. N. Grechushnikov, G. I. Distler, and I. P. Petrov, Optical Materials for Infrared Technology [in Russian], Nauka, Moscow (1987), pp. 149–154.

    Google Scholar 

  3. T. D. Ibragimov, G. G. Kurbanova, and V. S. Gorelik, Phys. Status Solidi (b), 155, 113–116 (1989).

    Article  ADS  Google Scholar 

  4. N. Kirov and P. Simova, in: Vibrational Spectroscopy of Liquid Crystals, Publishing House of the Bulgarian Academy of Sciences, Sofia (1984), pp. 43–54.

    Google Scholar 

  5. R. Mahanda, M. Konwar, Ch. Siam, and G. D. Baruah, Int. J. Light and Electron Opt., 120, No. 9, 427–430 (2009).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Physics, National Academy of Sciences of Azerbaijan, 33 prosp. H. Javid, Baku, AZ1143, Azerbaijan

    T. D. Ibragimov & E. A. Allakhverdiev

  2. Baku State University, Baku, Azerbaijan

    G. M. Bairamov & A. R. Imamaliev

Authors
  1. T. D. Ibragimov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. A. Allakhverdiev
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. M. Bairamov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. R. Imamaliev
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to T. D. Ibragimov.

Additional information

Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 78, No. 3, pp. 472–476, May–June, 2011.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ibragimov, T.D., Allakhverdiev, E.A., Bairamov, G.M. et al. Selective modulation of infrared radiation by an Al2O3 particles — liquid crystal system. J Appl Spectrosc 78, 445–449 (2011). https://doi.org/10.1007/s10812-011-9476-z

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10812-011-9476-z

Keywords

Search

Navigation