S.Y. Lin, G. Arjavalingam
Journal of the Optical Society of America B: Optical Physics
The ultraviolet absorption spectra for polyimide and several polyimide model compounds have been measured and the spectroscopically parametrized CNDO/S3 model is used to provide a detailed quantitative description of the spectra. Analysis of the optical absorption spectrum yields a value of 30° for the phenylimide torsional angle in these systems. In addition, the ultraviolet absorptions are found to be intramolecular charge transfer transitions. © 1989 American Institute of Physics.
S.Y. Lin, G. Arjavalingam
Journal of the Optical Society of America B: Optical Physics
A. Deutsch, M. Scheuermann, et al.
IEEE Microwave and Guided Wave Letters
G. Arjavalingam, Y. Pastol, et al.
CLEO 1989
W. Robertson, G.V. Kopcsay, et al.
IEE/LEOS Summer Topical Meetings 1991