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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2804

Title: Differential dichroic spectroscopy in liquid crystals using unpolarized radiation
Authors: Fernandes, J.R.
Venugopalan, S.
Issue Date: 15-Jan-1978
Publisher: Elsevier B.V.
Citation: Chemical Physics Letters, 1978, Vol.53, p407-412
Abstract: An unpolarized, differential technique is described for obtaining the dichroic spectra of uniaxial liquid crystals from a single spectral scan. Using this method, we investigate the near infrared dichoic spectrum of n-heptyl cyanobiphenyl (7CB). The temperature dependence of the orientational order parameter has been derived close to the nematic-isotropic transition and this is in good agreement with earlier Raman data. The differential method is also advantageous for dichroic studies on oriented guest molecules in liquid crystals. Illustrative results are presented for p-nitrotoluene dissolved in a nematic medium.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/2804
ISSN: 0009-2614
Alternative Location: http://dx.doi.org/10.1016/0009-2614(78)85429-3
Copyright: 1978 Elsevier B.V
Appears in Collections:Research Papers (SCM)

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