M.O. Aboelfotoh, C. Feger, et al.
Applied Physics Letters
The optical anisotropy of planar polyimide lightguides in an atmosphere of n-heptaneyiso-octane is investigated in a transient experiment for pure and several mixed-vapor concentrations. The polymer sensor responds only to n-heptane and not to iso-octane vapors. However, the presence of the latter affects the dynamic behavior of the waveguide anisotropy, which can be fitted by a stretched exponential time dependence. The saturation values of the birefringence are an absolute measure for the n-heptane concentration and are not affected by the presence of the iso-octane vapors. © 1995, Optical Society of America.
M.O. Aboelfotoh, C. Feger, et al.
Applied Physics Letters
C. Feger, B.K. Furman, et al.
SPE ANTEC 1998
C. Feger, S. Perutz, et al.
ANTEC Annual Technical Conference 1991
Ravi F. Saraf, C. Feger
International Conference on Polyimides 1991