Subpicosecond Ultrafast Laser Technique—Application and Design

1982 ◽  
pp. 417-427 ◽  
Author(s):  
C.V. Shank ◽  
B.I. Greene
Keyword(s):  
Ultrafast Laser ◽  
Laser Technique

scholarly journals Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask

2008 ◽  
Vol 2008 ◽  
pp. 1-20 ◽  
Author(s):  
Stephen J. Mihailov ◽  
Dan Grobnic ◽  
Christopher W. Smelser ◽  
Ping Lu ◽  
Robert B. Walker ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Ultrafast Laser ◽  
Phase Mask ◽  
Research Centre ◽  
Formation Processes ◽  
Uv Laser ◽  
Laser Technique ◽  
Crystalline Materials ◽  
Ir Laser ◽  
Ultrafast Infrared

Since its development in 2003, the technique of Bragg grating inscription in optical fibers and waveguides with ultrafast infrared radiation and a phase mask has proven to be as simple as the standard UV-laser grating writing techniques but far more versatile. The ultrafast IR laser-based process allows for the creation of grating structures in glassy and crystalline materials that are not typically UV photosensitive. In this article, we will review the studies that have been performed at the Communications Research Centre Canada on the grating formation processes as well as applications of the ultrafast laser technique to fabricate gratings in various optical fibers and waveguides.

Multifunctional wettability patterns prepared by laser processing on superhydrophobic TiO2nanostructured surfaces

2015 ◽  
Vol 3 (3) ◽  
pp. 342-347 ◽  
Author(s):  
Huaqiong Li ◽  
Yuekun Lai ◽  
Jianying Huang ◽  
Yuxin Tang ◽  
Lei Yang ◽  
...  
Keyword(s):  
Laser Processing ◽  
Three Dimensional ◽  
Ultrafast Laser ◽  
Laser Technique ◽  
Nanotube Array ◽  
Droplet Manipulation

An ultrafast laser technique is developed to construct a three-dimensional pattern with high wettability contrast on a superhydrophobic TiO2nanotube array surface for droplet manipulation and biomedical scaffold.

Ultrafast laser processing of ceramics: Comprehensive survey of laser parameters

2021 ◽  
Vol 33 (1) ◽  
pp. 012009
Author(s):  
Aiko Narazaki ◽  
Hideyuki Takada ◽  
Dai Yoshitomi ◽  
Kenji Torizuka ◽  
Yohei Kobayashi
Keyword(s):  
Laser Processing ◽  
Ultrafast Laser ◽  
Laser Parameters ◽  
Comprehensive Survey

Progress in ultrafast laser space-selective welding

2020 ◽  
Vol 13 (6) ◽  
pp. 1-15
Author(s):  
ZHANG Guo-dong ◽  
◽  
CHENG Guang-hua ◽  
ZHANG Wei ◽  
Keyword(s):  
Ultrafast Laser

From Semiconductor to Metal in a Flash: Observing Ultrafast Laser-Induced Phase Transformations

1997 ◽  
Vol 481 ◽  
Author(s):  
J. P. Callan ◽  
A. M.-T. Kim ◽  
L. Huangt ◽  
E. N. Glezer ◽  
E. Mazur
Keyword(s):  
Phase Transformations ◽  
Dielectric Function ◽  
Spectral Range ◽  
Laser Excitation ◽  
Spectroscopic Technique ◽  
Ultrafast Laser ◽  
Lattice Heating ◽  
Fs Laser

ABSTRACTWe use a new broadband spectroscopic technique to measure ultrafast changes in the dielectric function of a material over the spectral range 1.5–3.5 eV following intense 70-fs laser excitation. The results reveal the nature of the phase transformations which occur in the material following excitation. We studied the response of GaAs and Si. For GaAs, there are three distinct regimes of behavior as the pump fluence is increased — lattice heating, lattice disordering, and a semiconductor-to-metal transition.

scholarly journals Application concepts for ultrafast laser-induced skyrmion creation and annihilation

2021 ◽  
Vol 118 (19) ◽  
pp. 192403
Author(s):  
Kathinka Gerlinger ◽  
Bastian Pfau ◽  
Felix Büttner ◽  
Michael Schneider ◽  
Lisa-Marie Kern ◽  
...  
Keyword(s):  
Ultrafast Laser

scholarly journals Space Qualification of Ultrafast Laser‐Written Integrated Waveguide Optics

2020 ◽  
pp. 2000167
Author(s):  
Simone Piacentini ◽  
Tobias Vogl ◽  
Giacomo Corrielli ◽  
Ping Koy Lam ◽  
Roberto Osellame
Keyword(s):  
Ultrafast Laser
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