Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser

In processes using the ultrashort pulsed laser, the phenomenon that the ablation efficiency is reduced due to the increase of the shielding effect of the generated plume is increasingly caused by the use of the high power and high repetition rate. A new method is needed to prevent a decrease in abla...

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Main Authors: Seung Sik Ham, Ho Lee
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/12/4/959
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author Seung Sik Ham
Ho Lee
author_facet Seung Sik Ham
Ho Lee
author_sort Seung Sik Ham
collection DOAJ
description In processes using the ultrashort pulsed laser, the phenomenon that the ablation efficiency is reduced due to the increase of the shielding effect of the generated plume is increasingly caused by the use of the high power and high repetition rate. A new method is needed to prevent a decrease in ablation efficiency in processing using an ultrashort pulsed laser. In this study, the proposed a processing method that can improve the ablation efficiency by providing an efficient escape path of plume, and examine the feasibility of a new processing method. The new method we proposed is a method of laser processing after generating a fine curvature in the polymer as a preliminary preparation. The fine curvature of the polymer produced by the preliminary preparation induces an artificial chimney-like opening along the path of the incident beam during laser processing, thereby enabling the plume to be effectively removed. The experiment for examine the feasibility through a new method was conducted using a 10-picosecond laser of UV wavelength with two optical systems. As a new processing method, when processing with ultrashort pulse laser, it was observed that the ablation efficiency improved.
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spelling doaj.art-3641e6e6f3284af18e8c4c96a70596ab2023-11-19T22:11:21ZengMDPI AGPolymers2073-43602020-04-0112495910.3390/polym12040959Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond LaserSeung Sik Ham0Ho Lee1Institute for Nanophotonics Applications, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu 41566, KoreaInstitute for Nanophotonics Applications, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu 41566, KoreaIn processes using the ultrashort pulsed laser, the phenomenon that the ablation efficiency is reduced due to the increase of the shielding effect of the generated plume is increasingly caused by the use of the high power and high repetition rate. A new method is needed to prevent a decrease in ablation efficiency in processing using an ultrashort pulsed laser. In this study, the proposed a processing method that can improve the ablation efficiency by providing an efficient escape path of plume, and examine the feasibility of a new processing method. The new method we proposed is a method of laser processing after generating a fine curvature in the polymer as a preliminary preparation. The fine curvature of the polymer produced by the preliminary preparation induces an artificial chimney-like opening along the path of the incident beam during laser processing, thereby enabling the plume to be effectively removed. The experiment for examine the feasibility through a new method was conducted using a 10-picosecond laser of UV wavelength with two optical systems. As a new processing method, when processing with ultrashort pulse laser, it was observed that the ablation efficiency improved.https://www.mdpi.com/2073-4360/12/4/959picosecond pulse laserfine curvature of polymerenhanced laser ablation efficiencyartificial chimneylaser ablation
spellingShingle Seung Sik Ham
Ho Lee
Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
Polymers
picosecond pulse laser
fine curvature of polymer
enhanced laser ablation efficiency
artificial chimney
laser ablation
title Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
title_full Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
title_fullStr Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
title_full_unstemmed Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
title_short Development of Method Enhanced Laser Ablation Efficiency According to Fine Curvature of the Polymer through the Preliminary Preparation Process Using UV Picosecond Laser
title_sort development of method enhanced laser ablation efficiency according to fine curvature of the polymer through the preliminary preparation process using uv picosecond laser
topic picosecond pulse laser
fine curvature of polymer
enhanced laser ablation efficiency
artificial chimney
laser ablation
url https://www.mdpi.com/2073-4360/12/4/959
work_keys_str_mv AT seungsikham developmentofmethodenhancedlaserablationefficiencyaccordingtofinecurvatureofthepolymerthroughthepreliminarypreparationprocessusinguvpicosecondlaser
AT holee developmentofmethodenhancedlaserablationefficiencyaccordingtofinecurvatureofthepolymerthroughthepreliminarypreparationprocessusinguvpicosecondlaser