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Polycarbonate Track-Etched Membrane Micromachining by Ultrafast Pulse Laser  

Choi, Hae-Woon (Department of Mechanical and Automotive Engineering, Keimyung Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.28, no.1, 2011 , pp. 24-30 More about this Journal
Abstract
PC-TEMs (Polycarbonate Track-Etched membranes) were micro-drilled for biomedical applications by ultrafast pulsed laser. The ablation and damage characteristics were studied on PE-TEMs by assuming porous thin membranes. The experiments were conducted in the range of 2.02 $J/cm^2$ and 8.07$J/cm^2$. The ablation threshold and damage threshold were found to be 2.56$J/cm^2$ and 1.14$J/cm^2$, respectively. While a conical shaped drilled holes was made in lower fluence region, straight shaped holes were drilled in higher fluence region. Nanoholes made the membrane as porous material and ablation characteristics for both bulk and thin film membranes were compared.
Keywords
Ultrafast Laser; PCTE(Polycarbonate Track etched Membrane); Microdrilling;
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Times Cited By KSCI : 3  (Citation Analysis)
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