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Proceedings Paper

New discovery and mechanism behind the diffraction ring formation of a nematic liquid crystal
Author(s): Kwok Cheung Pun
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Paper Abstract

A new discovery has been made for the diffraction ring formation of a nematic liquid crystal. When a beam shines on the crystal of a shallow tilt at 5 degrees, an innermost ring will be formed form the previous innermost ring. While it is at steep tilt of 40 degrees, the new innermost ring will be given rise by the bright center spot. The mechanism is deep-rooted to the electronic polarizability of the nematic liquid crystal. Thus the polarizability can form a complex and yet the most realistic model for the crystal to account for its characteristics. The sensitivity and physical display of two different ring formations of the nematic liquid crystal will open a wide range of investigations including some unknown areas like a calibration of earthquake-prediction detection and some very high-precision instrument applications.

Paper Details

Date Published: 17 June 1998
PDF: 9 pages
Proc. SPIE 3421, Display Technologies II, (17 June 1998); doi: 10.1117/12.311056
Show Author Affiliations
Kwok Cheung Pun, Ngee Ann Polytechnic (Singapore)

Published in SPIE Proceedings Vol. 3421:
Display Technologies II
Fang-Chen Luo; Shin-Tson Wu; Shunsuke Kobayashi, Editor(s)

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