THERMODYNAMIC PROPERTY AND RECORDING MECHANISM OF INDOLENINE CYANINE DYE FOR OPTICAL MEMORY MEDIUM

The indotricarbocyanine iodide, whose spectroscopic property is in cor respondence with diode laser wavelength range, has been chosen for stu dying its recording mechanism. Its thermodynamic property has been mea sured by DSC. Meanwhile, correlation between thermodynamic property an d temperature, recording potential and the spectra before and after he ating have also been investigated. Results show that information-recor ded region has much higher reflectivity than non-recorded one. And it is suggested that information recording is mainly due to the thermal e ffect caused by laser irradiation.