In:
Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 37, No. 13 ( 2023-05-10)
Abstract:
A comparative study on the optical, morphological and laser-induced damage characteristics of rubbed polyimide, SiO 2 thin films by glancing angle deposition, and the corresponding liquid crystal (LC) retarders, is presented in this paper. SiO 2 inorganic thin films were prepared with a deposition angle of 45[Formula: see text], and traditional polyimide (PI) films were prepared by spin coating and rubbing. The experimental results indicate that the SiO 2 thin films have a good transmittance and resistance to laser damage. The transmittance of the SiO 2 thin films was above 92% in the wavelength range 400–1200 nm, and that of the corresponding LC retarder was approximately 90% in the wavelength range 800–1200 nm. The laser-induced damage threshold of the SiO 2 thin films reached 32.6 J/cm 2 , and that of the corresponding LC retarder was 1.84 J/cm 2 . These results are better than those of the PI alignment films. SiO 2 thin films have potential for use in the LC optical devices for laser applications.
Type of Medium:
Online Resource
ISSN:
0217-9849
,
1793-6640
DOI:
10.1142/S0217984923500161
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2023
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