STUDI SIFAT OPTIK PANDU GELOMBANG DARI LAPISAN ATACTIC POLYSTERENE (a-PS) TIPIS HASIL FABRIKASI DENGAN METODE DIP COATING

Oleh :
DEDI NUGROHO - M0204004 -

ABSTRACT It has been done a research about waveguide optical property of atactic Polystyrene ( a-PS ) film fabricated using dip coating method. a-PS solution was made by disolving a-PS grain in toluene with a concentration of 5% and heating f thin film with temperature variation of 30 o C, 64 o C, 84 o C, 94 o C, 114 o C . A oupling prism was used to identify whether the a-PS film can propagate a wave. The result of measurement showed that thin film can guide a wave. The number of wave that can be supported by waveguide was same with solution temperature in which the number of modus respectively were 6, 8, 12, 13, and 14. Further measurement of refractive index using refractometer ABBE showed that refractive ndex seemed to decrease with the decrease of warm-up temperature of thin film. Keyword : Thin a-PS film, waveguide, refractometer, dip coting, coupling prism