Alignment Change of Discotic Liquid Crystal Domains with Wavelength Tunable CO2 Laser Irradiation

Abstract:

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Infrared-induced alignment change with wavelength tunable CO2 laser irradiation for columnar liquid crystal domains was investigated for a triphenylene-based discotic liquid crystal. A uniformly aligned alignment change of domains was observed when a plused linearly polarized infrared laser light corresponding to the wavelength of the aromatic C-O-C stretching vibration band (9.65µm) was irradiated while it was not re-aligned uniformly with continious wave irradiation. The results strongly imply that the infrared irradiation is a possible technique for device fabrication by use of columnar mesophase as a liquid crystalline semiconductor.

Info:

Periodical:

Key Engineering Materials (Volumes 428-429)

Edited by:

Yuan Ming Huang

Pages:

284-287

DOI:

10.4028/www.scientific.net/KEM.428-429.284

Citation:

H. Monobe and Y. Shimizu, "Alignment Change of Discotic Liquid Crystal Domains with Wavelength Tunable CO2 Laser Irradiation", Key Engineering Materials, Vols. 428-429, pp. 284-287, 2010

Online since:

January 2010

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Price:

$35.00

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