Photo-induced refractive-index changes and birefringence in optically nonlinear polyester

Yongqiang Shi; William H. Steier; Luping Yu; Mai Chen; Larry Raymond Dalton

doi:10.1117/12.50662

1 December 1991 Photo-induced refractive-index changes and birefringence in optically nonlinear polyester

Yongqiang Shi, William H. Steier, Luping Yu, Mai Chen, Larry Raymond Dalton

Proceedings Volume 1559, Photopolymer Device Physics, Chemistry, and Applications II; (1991) https://doi.org/10.1117/12.50662
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This paper presents the study of the photoinduced refractive index change and birefringence in a nonlinear optical polymer --polyester with disperse red 19 side groups. Polyester with disperse red 19 side groups showed sizable second-order nonlinear optical properties when poled under intense electric field. In addition, under ultra-violet or short wavelength visible light illumination, large photoinduced refractive index changes were measured in the near infrared region. Furthermore, with linearly polarized light illumination large photoinduced birefringence was also exhibited in the thin films of this polymer. Some device structures, such as birefringent gratings, thin film waveplates, and optical waveguides, were generated by photo exposure method. A simple theoretical model is also presented to investigate the relation between the photoinduced birefringence and the refractive index change.

Citation Download Citation

Yongqiang Shi, William H. Steier, Luping Yu, Mai Chen, and Larry Raymond Dalton "Photo-induced refractive-index changes and birefringence in optically nonlinear polyester", Proc. SPIE 1559, Photopolymer Device Physics, Chemistry, and Applications II, (1 December 1991); https://doi.org/10.1117/12.50662

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