spacing among the layers thus the polymer clearly formed a smectic c liquid crystal by the observation of the polymer a at 170 u00b0 c using a polarization microscope a clear retardation line was observed and it was found that the polymer a has a helical period structure therefore the polymer is considered to form a smectic c structure and have a helical structure which was observed optically from the results of x ray diffraction and those of polarization microscope observation so that it is chiral smectic c liquid crystallinity polymer a as host molecule and p nitroaniline as nlo compound were dissolved in phenol tetrachloroethane mixed solvent weight ratio 60 40 in a ratio of 90 to 10 to prepare a homogeneous solution then the solvent was evaporated from this solution to produce a cast film this cast film was sandwiched between two polyimide films coated with tefron interposing with a spacer of aluminum film of 100 u03bcm and preheated at 170 u00b0 c for 30 minutes using a bench press then while maintaining the same temperature pressing was carried out with slowly increasing pressure and the sandwiched material were taken out of the press and allowed to be cooled after removing the polyimide film and the aluminum spacer nd 3 yag laser light u03bb 1 06 u03bcm was radiated on the resulting film to examine a nonlinear optical response of the film so that the generation of the second higher harmonic u03bb 0 53 u03bcm was observed other films were prepared repeating the above method except that the temperature was changed to.