Chen Zhong, Li Feiming, Yang Yuanlong. ULTRAVIOLET LASER ABLATION AND ETCHING POLYMER FILM[J]. Chinese Journal of Luminescence, 1993,14(2): 179-184DOI:
Emission spectra have been studied for the polymer film(PET)expo-sed to 308nm pulsed excimer laser.The emission spectra of the polymer films which have been irradiated by UV lamp are also studied.These two kinds of spectra show no difference in our experiments.It is found that the spectra belong to C
2
swan systerm and CN red system.Our experiments show that the etching depth of each pulse is about 1μm when the laser intensity is 300mJ/cm
2
and the threshold of etching is 50mJ/cm
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.SEM photos of the irradiated surface are also given.