ISSN:
1432-0649
Keywords:
82.50 - M
;
42.60 - V
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Polyethylene terephthalate (PET) films preheated with a pulsed CO2 laser have been ablatively etched with an XeCl laser. The observed reduction in ablation threshold, from 170 to 140 mJ cm−2, is consistent with a thermal mechanism for XeCl laser ablation of PET. Transient changes in the UV absorption coefficient of PET caused by heating with pulsed CO2 laser radiation have also been studied and a significant increase in absorption observed at ∼308 nm. Permanent changes in the ultraviolet absorption of PET following exposure to low fluence XeCl laser radiation are also reported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00325346
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