Microfabrication of gratings inside a transparent material using femtosecond laser processing with computer generated hologram

2009 ◽  
Author(s):  
Hayato Kawashima ◽  
Masahiro Yamaji ◽  
Jun’ichi Suzuki ◽  
Shuhei Tanaka
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Transparent Material ◽  
Computer Generated Hologram ◽  
Femtosecond Laser Processing

Holographic femtosecond laser manipulation for advanced material processing

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Satoshi Hasegawa ◽  
Yoshio Hayasaki
Keyword(s):  
Material Processing ◽  
Femtosecond Laser ◽  
Laser Processing ◽  
High Speed ◽  
Large Scale ◽  
High Energy ◽  
Material Surface ◽  
Two Photon ◽  
Computer Generated Hologram ◽  
Femtosecond Laser Processing

AbstractParallel femtosecond laser processing using a computer-generated hologram displayed on a spatial light modulator, known as holographic femtosecond laser processing, provides the advantages of high throughput and high-energy use efficiency. Therefore, it has been widely used in many applications, including laser material processing, two-photon polymerization, two-photon microscopy, and optical manipulation of biological cells. In this paper, we review the development of holographic femtosecond laser processing over the past few years from the perspective of wavefront and polarization modulation. In particular, line-shaped and vector-wave femtosecond laser processing are addressed. These beam-shaping techniques are useful for performing large-area machining in laser cutting, peeling, and grooving of materials and for high-speed fabrication of the complex nanostructures that are applied to material-surface texturing to control tribological properties, wettability, reflectance, and retardance. Furthermore, issues related to the nonuniformity of diffraction light intensity in optical reconstruction and wavelength dispersion from a computer-generated hologram are addressed. As a result, large-scale holographic femtosecond laser processing over 1000 diffraction spots was successfully demonstrated on a glass sample.

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
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