Single-pulse ultraviolet laser-induced surface modification and ablation of polyimide

1998 ◽  
Vol 73 (6) ◽  
pp. 847-849 ◽  
Author(s):  
K. Piglmayer ◽  
E. Arenholz ◽  
C. Ortwein ◽  
N. Arnold ◽  
D. Bäuerle
Keyword(s):  
Surface Modification ◽  
Single Pulse ◽  
Ultraviolet Laser ◽  
Laser Induced Surface Modification

scholarly journals Titanium surface modification using femtosecond laser with 1013–1015 W/cm2 intensity in vacuum

2012 ◽  
Vol 31 (1) ◽  
pp. 29-36 ◽  
Author(s):  
M. Trtica ◽  
D. Batani ◽  
R. Redaelli ◽  
J. Limpouch ◽  
V. Kmetik ◽  
...  
Keyword(s):  
Surface Modification ◽  
Femtosecond Laser ◽  
Titanium Surface ◽  
Femtosecond Lasers ◽  
Single Pulse ◽  
Surface Structures ◽  
Pulse Regime ◽  
Periodic Surface ◽  
Reduced Intensity ◽  
Surface Changes

AbstractThe response of titanium surface irradiated with high intensity (1013 – 1015 W/cm2) Ti:sapphire laser was studied in vacuum. Most of the reported investigations were conducted with nano- to femtosecond lasers in gas atmospheres while the studies of titanium surface interacting with femtosecond laser in vacuum are scarce. The laser employed in our experiment was operating at 800 nm wavelength and pulse duration of 60 fs in single pulse regime. The observed surface changes and phenomena are (1) creation of craters, (2) formation of periodic surface structures at the reduced intensity, and (3) occurrence of plasma in front the target. Since microstructuring of titanium is very interesting in many areas (industry, medicine), it can be concluded from this study that the reported laser intensities can effectively be applied for micromachining of the titanium surface (increasing the roughness, formation of parallel periodic surface structures etc.).

Laser-induced surface modification of polystyrene

2009 ◽  
Vol 256 (3) ◽  
pp. 857-861 ◽  
Author(s):  
Piotr Rytlewski ◽  
Marian Żenkiewicz
Keyword(s):  
Surface Modification ◽  
Laser Induced Surface Modification

Laser induced surface modification of polylactide

2012 ◽  
Vol 212 (8) ◽  
pp. 1700-1704 ◽  
Author(s):  
Piotr Rytlewski ◽  
Waldemar Mróz ◽  
Marian Żenkiewicz ◽  
Joanna Czwartos ◽  
Bogusław Budner
Keyword(s):  
Surface Modification ◽  
Laser Induced Surface Modification

Surface Modification and Heat Treatment of Ti Rod by Electro Discharge

2007 ◽  
Vol 124-126 ◽  
pp. 1581-1584
Author(s):  
W.H. Lee ◽  
N.H. Oh ◽  
Y.H. Kim ◽  
Y.W. Cheon ◽  
Y.J. Cho ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Phase Transformation ◽  
Surface Modification ◽  
Cross Section ◽  
Single Pulse ◽  
Discharge Process ◽  
Input Energy ◽  
N2 Atmosphere ◽  
Cp Ti

Single pulse of 2.0 to 3.5 kJ of input energy from 150 μF capacitor was applied in a N2 atmosphere to the cp Ti rod for its surface modification and heat treatment. Under the conditions of using 2.0 and 2.5 kJ of input energy, no phase transformation has been occurred. However, the hardness and tensile strength decreased slightly after a discharge due to a grain growth. Using greater than 3.0 kJ of input energy, the electro discharge process made a phase transformation and the hardness especially at the edge of the cross-section of the Ti rod increased significantly. The Ti rod before the discharge was lightly oxidized and was primarily in the form of TiO2. However, the surface of the Ti rod has been instantaneously modified by the discharge into the major form of TiN from TiO2. The electro discharge process can thus modify the Ti rod’s surface in times as short as 200 μsec by manipulating the input energy, capacitance, and discharging ambience.

scholarly journals Formation of superhydrophobic poly(dimethysiloxane) by ultrafast laser-induced surface modification

2008 ◽  
Vol 16 (17) ◽  
pp. 12715 ◽  
Author(s):  
Tae Oh Yoon ◽  
Hyun Joo Shin ◽  
Sae Chae Jeoung ◽  
Youn-Il Park
Keyword(s):  
Surface Modification ◽  
Ultrafast Laser ◽  
Laser Induced Surface Modification
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