Preparation of chloro heptamethine cyanine dye and investigation of the applicability in dye laser

PREPARATION OF CHLORO HEPTAMETHINE CYANINE DYE ANDINVESTIGATION OF THE APPLICABILITY IN DYE LASER(M.Sc. Thesis )A.Doğan SOYALGAZI UNIVERSITYINSTITUTE OF SCIENCE AND TECHNOLOGYOctober 2006ABSTRACTThe most important characteristics of polymethine dyes involve their ability ofstrong absorption in the ultraviolet, visible and near infrared regions. Theseproperties also enable their use in many applications other than dyeing. Chloroheptamethine cyanine dye as a type of polymethine dye was obtained from thereaction of quaternary ammonium salt and bisaldehyde. The properties ofobtained dye such as fluorescence, excitation and absorption was found andthe applicability in dye laser also. It was shown that the dye could produce laserlight in the intervals where it shows its fluorescence property.Science Code : 912.041Key Words : Laser dyes, polymethine dyes, heptamethinecyaninePage Number : 54Adviser : Prof.Dr M.Atilla MURATHAN