Share Email Print
cover

Proceedings Paper

Polymer ablation by ultrashort pulsed lasers
Author(s): Alexander A. Serafetinides; Mersini I. Makropoulou; Ajoy Kumar Kar; Constantine D. Skordoulis
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper, we study the ablation behavior of polyetheretherketone polymer samples of 100 micrometers thickness when irradiated with visible laser light of 445 nm wavelength and 200 fs pulse width at 82 MHz pulse repetition rate. Etch depths corresponding to a particular laser power were measured at room temperature in open air, by counting the number of pulses required to perforate the sample. The laser focal spot size has been measured to be 0.03 mm2 and was kept constant during the experiment. The surface topology of the polymer samples was investigated by Atomic Force Microscopy in the continuous contact mode. The obtained Atomic Force Microscopy images revealed no mechanical damage in the inner ablation crater wall. Plots of the ablation rate as a function of the laser power, both in a linear and a logarithmic scale, show a large deviation from a straight line. These findings along with the high average power and suggest that Multiphoton Dissociation is the predominant mechanism responsible for ablation in this experiment.

Paper Details

Date Published: 1 February 2000
PDF: 7 pages
Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376991
Show Author Affiliations
Alexander A. Serafetinides, National Technical Univ. of Athens (Greece)
Mersini I. Makropoulou, National Technical Univ. of Athens (Greece)
Ajoy Kumar Kar, Heriot-Watt Univ. (United Kingdom)
Constantine D. Skordoulis, Univ. of Ioannina (Greece)


Published in SPIE Proceedings Vol. 3885:
High-Power Laser Ablation II
Claude R. Phipps; Masayuki Niino, Editor(s)

© SPIE. Terms of Use
Back to Top