Applying Tersoff-potential and bond-softening models in a molecular dynamics study of femtosecond laser processing

2019 ◽  
Vol 126 (4) ◽  
pp. 045109
Author(s):  
Byoung Seo Lee ◽  
Seungho Park
Keyword(s):  
Molecular Dynamics ◽  
Femtosecond Laser ◽  
Laser Processing ◽  
Femtosecond Laser Processing ◽  
Bond Softening

An Ab Initio Molecular Dynamics Simulation of Femtosecond Laser Processing of Germanium

2013 ◽  
Author(s):  
Pengfei Ji ◽  
Yuwen Zhang
Keyword(s):  
Molecular Dynamics ◽  
Femtosecond Laser ◽  
Ab Initio ◽  
Laser Processing ◽  
Density Functional ◽  
Dynamic Properties ◽  
Dynamics Simulation ◽  
Femtosecond Laser Irradiation ◽  
Ab Initio Molecular Dynamics ◽  
Femtosecond Laser Processing

An ab initio molecular dynamics study of femtosecond laser processing of germanium is presented in this paper. The method based on the finite temperature density functional theory is adopted to probe the nanostructure change, thermal motion of the atoms, dynamic property of the velocity autocorrelation, and the vibrational density of states. Starting from a cubic system at room temperature (300 K) containing 64 germanium atoms with an ordered arrangement of 1.132 nm in each dimension, the femtosecond laser processing is simulated by imposing the Nose Hoover thermostat to the electron subsystem lasting for ∼100 fs and continuing with microcanonical ensemble simulation of ∼200 fs. The simulation results show solid, liquid and gas phases of germanium under adjusted intensities of the femtosecond laser irradiation. We find the irradiated germanium distinguishes from the usual germanium crystal by analyzing their melting and dynamic properties.

scholarly journals Nonlinear refractive index of porcine cornea studied by z-scan and self-focusing during femtosecond laser processing

2010 ◽  
Vol 18 (4) ◽  
pp. 3700 ◽  
Author(s):  
M. Miclea ◽  
U. Skrzypczak ◽  
S. Faust ◽  
F. Fankhauser ◽  
H. Graener ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Nonlinear Refractive Index ◽  
Laser Processing ◽  
Self Focusing ◽  
Femtosecond Laser Processing ◽  
Porcine Cornea

Femtosecond laser processing of silver-containing glass with optical vortex beams

2014 ◽  
Author(s):  
Konstantin Mishchik ◽  
Yannick Petit ◽  
Etienne Brasselet ◽  
Inka Manek-Hönninger ◽  
Nicolas Marquestaut ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Optical Vortex ◽  
Femtosecond Laser Processing ◽  
Vortex Beams

Femtosecond laser processing of protein crystals grown in agarose gel

2009 ◽  
Vol 312 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Hitoshi Hasenaka ◽  
Shigeru Sugiyama ◽  
Mika Hirose ◽  
Noriko Shimizu ◽  
Tomoya Kitatani ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Protein Crystals ◽  
Agarose Gel ◽  
Femtosecond Laser Processing

Deep-subwavelength ripples on the ZnO surface obtained via metal-film-assisted femtosecond laser processing

2021 ◽  
pp. 151576
Author(s):  
Yaoyao Liu ◽  
Yuxuan Wang ◽  
Ming Yang ◽  
Qiang Wu ◽  
Zhixuan Li ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Metal Film ◽  
Femtosecond Laser Processing

scholarly journals Femtosecond laser processing – a new enabling technology

2012 ◽  
Vol 52 (4) ◽  
pp. 301-311 ◽  
Author(s):  
Ričardas Buividas ◽  
Mindaugas Mikutis ◽  
Tadas Kudrius ◽  
Artūras Greičius ◽  
Gintas Šlekys ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Enabling Technology ◽  
Femtosecond Laser Processing
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