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Proceedings Paper

Optical transmission of fatty acids mixtures
Author(s): Maria Honciuc; Eugenia G. Carbunescu; Floriana Iova
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Paper Abstract

In this paper we present the visible and infrared transmission of the fatty acids systems: arachidonic, arachidonic - arachidic (2:1) percent in weight and arachidonic - arachidic (1:2) percent in weight. The arachidonic acid prepared in a thin layer of 24 micrometers has a smectic liquid crystal behavior, with fiber texture. The arachidonic and arachidic systems in weight percentage (2:1) and (1:2) present, in a thin layer, the smectic C liquid crystal state. Our studies put in evidence the essential differences between the transmission of these systems in the visible and infrared range. The arachidonic acid presents a high absorption in the range (lambda) is a member of the set (330 divided by 350)nm. Within the range (lambda) is a member of the set (340 divided by 800)nm the absorption has high oscillations with a relatively constant period that can be interpreted based on the modification of the electron positions in the double bounds. All systems present a high absorption in the far infrared region (lambda) is a member of the set (2 divided by 20)micrometers . There are presented the results concerning the behavior of arachidonic acid under an external field, the influence of the monochromatic radiation upon the electric behavior and is emphasized the essential role of the percentage of arachidic acid in the modification of the electric state of the system.

Paper Details

Date Published: 29 June 2001
PDF: 6 pages
Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); doi: 10.1117/12.432913
Show Author Affiliations
Maria Honciuc, Univ. Politehnica Bucharest (Romania)
Eugenia G. Carbunescu, Univ. Politehnica Bucharest (Romania)
Floriana Iova, Univ. of Bucharest (Romania)

Published in SPIE Proceedings Vol. 4430:
ROMOPTO 2000: Sixth Conference on Optics
Valentin I. Vlad, Editor(s)

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