Comment on "Photon transmission technique for studying multiple phase transitions in a liquid crystal".
Contrary to the recently published results by Ozbek et al. [Phys. Rev. E 59, 6798 (1999)], we argue that the transmitted light intensity through an unoriented sample is by no means a good measure of the order parameters of the different phase transitions of a liquid crystal.
Etchegoin
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The Blackett Laboratory, Imperial College of Science, Technology, and Medicine, Prince Consort Road, London SW7 2BZ, United Kingdom.
Nöllmann
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