scholarly journals Silver centers luminescence in phosphate glasses subjected to X‐Rays or combined X‐rays and femtosecond laser exposure

2019 ◽  
Vol 11 (1) ◽  
pp. 15-26
Author(s):  
Théo Guérineau ◽  
Francesca Cova ◽  
Yannick Petit ◽  
Alain Abou Khalil ◽  
Alexandre Fargues ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Phosphate Glasses ◽  
Laser Exposure ◽  
X Rays

Photoluminescence of Point Defects in Silicon Dioxide by Femtosecond Laser Exposure

2021 ◽  
Author(s):  
Vincenzo De Michele ◽  
Emmanuel Marin ◽  
Aziz Boukenter ◽  
Marco Cannas ◽  
Sylvain Girard ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Silicon Dioxide ◽  
Point Defects ◽  
Laser Exposure

Kilohertz sources of hard x rays and fast ions with femtosecond laser plasmas

2003 ◽  
Vol 20 (1) ◽  
pp. 224 ◽  
Author(s):  
A. Thoss ◽  
M. Richardson ◽  
G. Korn ◽  
M. Faubel ◽  
H. Stiel ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
X Rays ◽  
Fast Ions ◽  
Laser Plasmas

Dynamics of Ablation Plume of Titanium Target under Femtosecond Laser Exposure

2020 ◽  
Vol 58 (1) ◽  
pp. 148-150
Author(s):  
E. V. Struleva ◽  
P. S. Komarov ◽  
S. A. Romashevskiy ◽  
M. A. Ovchinnikov ◽  
S. I. Ashitkov
Keyword(s):  
Femtosecond Laser ◽  
Ablation Plume ◽  
Laser Exposure ◽  
Titanium Target

scholarly journals Fabrication of 3D microchannels for tissue engineering in photosensitive glass using NIR femtosecond laser radiation

2019 ◽  
Vol 5 (1) ◽  
pp. 34-45 ◽  
Author(s):  
Ulrike Brokmann ◽  
Tobias Milde ◽  
Edda Rädlein ◽  
Klaus Liefeith
Keyword(s):  
Tissue Engineering ◽  
Laser Radiation ◽  
Femtosecond Laser ◽  
Raw Materials ◽  
Glass Structure ◽  
Three Dimensional ◽  
Silver Ions ◽  
Laser Exposure ◽  
Femtosecond Laser Radiation ◽  
Rate Ratios

Abstract The biocompatibility of photosensitive glasses allows various biomedical applications; one is the field of tissue engineering and more precisely microengineered tissue-on-a-chip platforms to study the tissue microenvironment and disease modelling. Three dimensional architectures of adapted components are required for modern materials. A photosensitive lithiumalumosilicate glass FS21 was investigated regarding the interaction with a Ti:Sapphire laser systemto build three dimensional buried channels inside the glass. Femtosecond laser radiation with a wavelength of 800 nm and pulse duration of 140 fs was used to modify the glass structure. Subsurface channel geometries were achieved by a subsequent thermal treatment and were formed into capillaries using wet chemical etching of the exposed and crystallised channels. Contrary to ultraviolet (UV) exposure, spectral optical investigations showed that fs laser exposure caused various radiation induced defects in the base glass coupled with the generation of photoelectrons for the photochemical modification of silver ions. We observed an outgassing of different species coming from raw materials of the original glass batch during the glass crystallisation process. Etch rate ratios differ between 1:25 and 1:45 and are dependent on: stoichiometric deviation between surface and bulk, crystal size and distribution and exchange of the etching agent in narrow capillaries.

Spectroscopy of Hard X-Rays (2–15 keV) Generated by Focusing Femtosecond Laser on Metal Targets

1999 ◽  
Vol 38 (Part 1, No. 12A) ◽  
pp. 6754-6756 ◽  
Author(s):  
Yasushi Fujimoto ◽  
Yoichiro Hironaka ◽  
Kazutaka G. Nakamura ◽  
Ken-ichi Kondo ◽  
Masatake Yoshida ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
X Rays

Ca2+ waves across gaps in non-excitable cells induced by femtosecond laser exposure

2012 ◽  
Vol 100 (17) ◽  
pp. 173704 ◽  
Author(s):  
Hao He ◽  
Shaoyang Wang ◽  
Xun Li ◽  
Shiyang Li ◽  
Minglie Hu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Exposure ◽  
Excitable Cells
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