scholarly journals Laser fluence dependence of periodic grating structures formed on metal surfaces under femtosecond laser pulse irradiation

2010 ◽  
Vol 82 (16) ◽  
Author(s):  
Kiminori Okamuro ◽  
Masaki Hashida ◽  
Yasuhiro Miyasaka ◽  
Yoshinobu Ikuta ◽  
Shigeki Tokita ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Laser Fluence ◽  
Metal Surfaces ◽  
Pulse Irradiation ◽  
Periodic Grating ◽  
Fluence Dependence

scholarly journals Multi-Angular Colorimetric Responses of Uni- and Omni-Directional Femtosecond Laser-Induced Periodic Surface Structures on Metals

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2010
Author(s):  
Taek-Yong Hwang ◽  
Yong-dae Kim ◽  
Jongweon Cho ◽  
Hai-Joong Lee ◽  
Hyo-Soo Lee ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Spatial Frequency ◽  
Femtosecond Laser Pulse ◽  
Metal Surfaces ◽  
Surface Structures ◽  
Pulse Irradiation ◽  
Periodic Surface ◽  
Frequency Laser ◽  
Angle Of Reflection

We investigated the colorimetric behaviors of metal surfaces with unidirectional low-spatial-frequency laser-induced periodic surface structures (UD-LSFLs) and omnidirectional LSFLs (OD-LSFLs) fabricated using femtosecond laser pulse irradiation. With the CIE standard illuminant D65, incident at −45°, we show that UD-LSFLs on metals transform polished metals to gonio-apparent materials with a unique behavior of colorimetric responses, depending on both the detection and rotation angles, whereas OD-LSFLs have nearly uniform gonio-apparent colors at each detection angle, regardless of their rotation. These colorimetric behaviors can be observed not only at the angles of diffraction but also near the angle of reflection, and we find that the power redistribution due to Rayleigh anomalies also plays an important role in the colorimetric responses of UD- and OD-LSFLs, in addition to diffraction.

scholarly journals X-ray spectroscopy diagnoses of clusters surviving under prepulses of ultra-intense femtosecond laser pulse irradiation

2012 ◽  
Vol 30 (3) ◽  
pp. 481-488 ◽  
Author(s):  
A.Ya. Faenov ◽  
I.Yu. Skobelev ◽  
T.A. Pikuz ◽  
S.A. Pikuz ◽  
V.E. Fortov ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Quantitative Estimation ◽  
Cluster Core ◽  
Spectroscopic Methods ◽  
Pulse Irradiation ◽  
X Ray ◽  
Dense Cluster ◽  
The Moment

AbstractIt is shown that various spectroscopic methods based on measurements of X-ray spectra radiated from cluster targets can be used for estimation of the destruction degree of clusters by laser prepulses. These methods allow insight to be gained regarding the important issue of preservation of the dense cluster core at the moment of the arrival of the main laser pulse. In addition, they can be used for quantitative estimation of the size of the undestroyed parts of the clusters and also for measuring the temperature and density of the preplasmas produced by the laser prepulses.

scholarly journals Amorphization dynamics of Ge2Sb2Te5 films upon nano- and femtosecond laser pulse irradiation

2008 ◽  
Vol 103 (2) ◽  
pp. 023516 ◽  
Author(s):  
J. Siegel ◽  
W. Gawelda ◽  
D. Puerto ◽  
C. Dorronsoro ◽  
J. Solis ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Pulse Irradiation

Phase changes in Ge1Sb2Te4 films induced by single femtosecond laser pulse irradiation

2006 ◽  
Vol 16 ◽  
pp. s226-s231 ◽  
Author(s):  
Su-mei HUANG ◽  
Zhuo SUN ◽  
Cai-xia JIN ◽  
Shi-yong HUANG ◽  
Yi-wei CHEN
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Phase Changes ◽  
Pulse Irradiation

Compositional dependent response of silica-based glasses to femtosecond laser pulse irradiation

2013 ◽  
Author(s):  
Thomas Seuthe ◽  
Moritz Grehn ◽  
Alexandre Mermillod-Blondin ◽  
Jörn Bonse ◽  
Markus Eberstein
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Pulse Irradiation
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