scholarly journals Optical Fabrication of Three-Dimensional Waveguide Structures in Photorefractive Material. Photo-Induced Refractive Index Changes in Glasses with Ultra-Short Pulse Laser.

1998 ◽  
Vol 26 (2) ◽  
pp. 150-154
Author(s):  
Kiyotaka MIURA ◽  
Kazuyuki HIRAO
Keyword(s):  
Refractive Index ◽  
Pulse Laser ◽  
Short Pulse ◽  
Three Dimensional ◽  
Optical Fabrication ◽  
Short Pulse Laser ◽  
Photorefractive Material ◽  
Index Changes ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

FDTD Analysis of Ultra Short Pulse Laser Propagation in Transient Lens Effect

2011 ◽  
Author(s):  
Munehiro Chijiiwa ◽  
Kazuyoshi Fushinobu ◽  
Ken Okazaki
Keyword(s):  
Refractive Index ◽  
Pulse Laser ◽  
Nonlinear Effect ◽  
Short Pulse ◽  
Two Dimensional ◽  
Refractive Index Distribution ◽  
Short Pulse Laser ◽  
Index Distribution ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Recent advances in measurement techniques using the photo-thermal effect have drawn attention to the application in various fields. We focus on the transient lens effect, which is a well-known photo-thermal phenomenon. As this effect is caused by the change of thermal properties or other physical properties, the measurements using this effect have the possibility to measure various materials information. This phenomenon has the optical property of a concave lens since the refractive index distribution on the optical axis is formed when the sample is irradiated. One reason for the refractive index distribution in sample is the effect of the nonlinear effect when irradiated by ultra-short pulse laser. In this research, we investigate two-dimensional propagation of ultra short pulse laser in the sample with nonlinear effect by using FDTD method. Effect of the third-order susceptibility on the two-dimensional pulse propagation has been demonstrated.

Silicon Thinning using Ultra-Short Pulse Laser Ablation

2004 ◽  
Author(s):  
F. Beaudoin ◽  
P. Perdu ◽  
C. DeNardi ◽  
R. Desplats ◽  
J. Lopez ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Sample Preparation ◽  
Pulse Laser ◽  
Pulse Laser Ablation ◽  
Short Pulse ◽  
Special Care ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Abstract Ultra-short pulse laser ablation is applied to IC backside sample preparation. It is contact-less, non-thermal, precise and can ablate the various types of material present in IC packages. This study concerns the optimization of ultra-short pulse laser ablation for silicon thinning. Uncontrolled silicon roughness and poor uniformity of the laser thinned cavity needed to be tackled. Special care is taken to minimize the silicon RMS roughness to less than 1µm. Application to sample preparation of 256Mbit devices is presented.

The study of time dependent, broadband X-ray emission from ultra-short pulse laser produced plasmas

1994 ◽  
Author(s):  
Ronnie Shepherd ◽  
Rex Booth ◽  
Dwight Price ◽  
Rosemary Walling ◽  
Richard More ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Time Dependent ◽  
X Ray ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Ultra-short pulse laser safety - a challenge to materials science

2005 ◽  
Author(s):  
Andreas Hertwig ◽  
Sven Martin ◽  
Wolfgang Kautek ◽  
Jörg Krüger
Keyword(s):  
Pulse Laser ◽  
Materials Science ◽  
Short Pulse ◽  
Laser Safety ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

Damage-Free Freeform Cutting of Flexible Battery Using Ultra-Short Pulse Laser

2021 ◽  
Vol 38 (3) ◽  
pp. 195-202
Author(s):  
SeokYoung Ji ◽  
Jaegu Kim ◽  
Sung Hak Cho ◽  
Hyungjun Lim ◽  
Won Seok Chang
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Short Pulse Laser ◽  
Flexible Battery ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser

scholarly journals Room temperature optical anisotropy of a LaMnO3 thin-film induced by ultra-short pulse laser

2015 ◽  
Vol 106 (9) ◽  
pp. 092907 ◽  
Author(s):  
Purevdorj Munkhbaatar ◽  
Zsolt Marton ◽  
Baatarchuluun Tsermaa ◽  
Woo Seok Choi ◽  
Sung S. Ambrose Seo ◽  
...  
Keyword(s):  
Thin Film ◽  
Pulse Laser ◽  
Optical Anisotropy ◽  
Room Temperature ◽  
Short Pulse ◽  
Short Pulse Laser ◽  
Ultra Short Pulse ◽  
Ultra Short Pulse Laser
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