scholarly journals Evidence of noncollisional femtosecond laser energy deposition in dielectric materials

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
G. Duchateau ◽  
B. Chimier ◽  
S. Coudert ◽  
E. Smetanina ◽  
L. Barilleau ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Energy Deposition ◽  
Laser Energy ◽  
Dielectric Materials

Optimization of laser energy deposition for single-shot high aspect-ratio microstructuring of thick BK7 glass

2016 ◽  
Vol 120 (1) ◽  
pp. 013102 ◽  
Author(s):  
Valerio Garzillo ◽  
Vytautas Jukna ◽  
Arnaud Couairon ◽  
Robertas Grigutis ◽  
Paolo Di Trapani ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Energy Deposition ◽  
Laser Energy ◽  
Single Shot ◽  
Bk7 Glass

PZT Film and Si Substrate Two-Layer System Patterning Morphology by Femtosecond Pulsed Laser

2007 ◽  
Author(s):  
Shizhou Xiao ◽  
Rui Guo ◽  
Guanghua Cheng ◽  
Yalei Wu ◽  
Wenhao Huang ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Energy ◽  
Threshold Model ◽  
Pulsed Laser ◽  
Direct Writing ◽  
Si Substrate ◽  
Layer System ◽  
Substrate Heating ◽  
Pzt Film ◽  
Femtosecond Pulsed Laser

In this paper, a novel PZT film patterning method by femtosecond laser is proposed. The method is different from traditional dry-etching and wet-etching technology. Femtosecond laser microfabrication technology has several advantages such as high resolution, no mask direct-writing and seldom-heating, etc. A two-layer (PZT thin film and substrate) heating and ablating threshold model is built and the relationship of PZT/Si two-layer system micro ablation morphology depending on laser pulse energy is constructed. From the model and experiment data, we obtain the suitable energy region to pattern PZT film freely without damage Si substrate. A 3μm resolution of PZT pattern is achieved in our experiment. In order to verify the fabrication available of this technology, several micro functional devices are successfully patterned by optimized femtosecond pulsed laser energy and their function are detected. The results prove that the PZT patterning quality is good.

scholarly journals Effect of Femtosecond Laser Energy Level on Corneal Stromal Cell Death and Inflammation

2009 ◽  
Vol 25 (10) ◽  
pp. 869-874 ◽  
Author(s):  
Fabricio Witzel de Medeiros ◽  
Harmeet Kaur ◽  
Vandana Agrawal ◽  
Shyam S. Chaurasia ◽  
Jefferey Hammel ◽  
...  
Keyword(s):  
Cell Death ◽  
Energy Level ◽  
Femtosecond Laser ◽  
Stromal Cell ◽  
Laser Energy
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