scholarly journals Holographic Femtosecond Laser Processing for Fabricating Three-Dimensional Structures

2018 ◽  
Vol 69 (5) ◽  
pp. 191-195
Author(s):  
Yoshio HAYASAKI
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Three Dimensional ◽  
Femtosecond Laser Processing

A Prediction Model for Ablation Fluence Threshold in Femtosecond Laser Processing of Fused Silica

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Han Wang ◽  
Hong Shen
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Three Dimensional ◽  
Ionization Rate ◽  
Fused Silica ◽  
Published Data ◽  
Direct Writing ◽  
Femtosecond Laser Processing ◽  
Ideal Tool ◽  
Improved Model

The manufacture of micro–nano structures in transparent dielectrics is becoming increasingly important due to the applications in medical and biological sciences. The femtosecond pulsed laser, with its selectivity, high precision, and three-dimensional direct writing nature, is an ideal tool for this processing technology. In this paper, an improved model for the prediction of ablation crater shape and fluence threshold in femtosecond laser processing of fused silica is presented, in which self-trapping excitons and electrons' relaxation are involved to depict ionization process, Thornber's and Keldysh's models are employed to estimate ionization rate precisely, and a novel ablation criterion is proposed to judge ablation. Moreover, the relationship between the ablation fluence threshold and laser pulse duration is investigated with three different extrapolation methods. The results indicate that no matter which extrapolation method is employed, the ablation fluence thresholds predicted by the presented model agree with the published data.

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
Sign in / Sign up

Export Citation Format

Share Document