High-damage-threshold static laser beam shaping using optically patterned liquid-crystal devices

2011 ◽  
Vol 36 (20) ◽  
pp. 4035 ◽  
Author(s):  
C. Dorrer ◽  
S. K.-H. Wei ◽  
P. Leung ◽  
M. Vargas ◽  
K. Wegman ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Damage Threshold ◽  
Beam Shaping ◽  
Laser Beam Shaping ◽  
Liquid Crystal Devices

High-Damage-Threshold Beam Shaping Using Optically Patterned Liquid Crystal Devices

2012 ◽  
Author(s):  
C. Dorrer ◽  
K. L. Marshall ◽  
S. H. Chen ◽  
M. Vargas ◽  
M. Statt ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Damage Threshold ◽  
Beam Shaping ◽  
Liquid Crystal Devices

Laser Beam Shaping using Self-Focusing in a Nematic Liquid Crystal

2006 ◽  
Vol 454 (1) ◽  
pp. 217/[619]-224/[626] ◽  
Author(s):  
Andriy Shevchenko ◽  
Antti Hakola ◽  
Scott C. Buchter ◽  
Matti Kaivola ◽  
Nelson V. Tabiryan
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Nematic Liquid Crystal ◽  
Beam Shaping ◽  
Laser Beam Shaping ◽  
Self Focusing

scholarly journals High damage threshold liquid crystal binary mask for laser beam shaping

2019 ◽  
Vol 7 ◽  
Author(s):  
Gang Xia ◽  
Wei Fan ◽  
Dajie Huang ◽  
He Cheng ◽  
Jiangtao Guo ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Metal Layer ◽  
Damage Threshold ◽  
Beam Shaping ◽  
Spatial Light Modulators ◽  
Binary Mask ◽  
Light Modulators ◽  
New Type ◽  
Multiple Shot

In order to improve the damage threshold and enlarge the aperture of a laser beam shaper, photolithographic patterning technology is adopted to design a new type of liquid crystal binary mask. The inherent conductive metal layer of commercial liquid crystal electro-optical spatial light modulators is replaced by azobenzene-based photoalignment layers patterned by noncontact photolithography. Using the azobenzene-based photoalignment layer, a liquid crystal binary mask for beam shaping is fabricated. In addition, the shaping ability, damage threshold, write/erase flexibility and stability of the liquid crystal binary mask are tested. Using a 1 Hz near-IR (1064 nm) laser, the multiple-shot nanosecond damage threshold of the liquid crystal mask is measured to be higher than $15~\text{J}/\text{cm}^{2}$. The damage threshold of the azobenzene-based photoalignment layer is higher than $50~\text{J}/\text{cm}^{2}$ under the same testing conditions.

scholarly journals Liquid Crystal Pancharatnam-Berry Micro-Optical Elements for Laser Beam Shaping

2018 ◽  
Vol 6 (23) ◽  
pp. 1800961 ◽  
Author(s):  
Miao Jiang ◽  
Hao Yu ◽  
Xiayu Feng ◽  
Yubing Guo ◽  
Irakli Chaganava ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Beam Shaping ◽  
Laser Beam Shaping ◽  
Optical Elements

Laser Beam Shaping Based on Liquid-Crystal Spatial Light Modulator

2012 ◽  
Vol 32 (5) ◽  
pp. 0514001 ◽  
Author(s):  
于晓晨 Yu Xiaochen ◽  
胡家升 Hu Jiasheng ◽  
王连宝 Wang Lianbao
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Spatial Light Modulator ◽  
Beam Shaping ◽  
Laser Beam Shaping ◽  
Light Modulator

Laser beam shaping for micromaterial processing using a liquid crystal display

2008 ◽  
Author(s):  
U. Klug ◽  
M. Boyle ◽  
F. Friederich ◽  
R. Kling ◽  
A. Ostendorf
Keyword(s):  
Liquid Crystal ◽  
Laser Beam ◽  
Liquid Crystal Display ◽  
Beam Shaping ◽  
Laser Beam Shaping

scholarly journals Tailored laser beam shaping for efficient and accurate microstructuring

2018 ◽  
Vol 124 (2) ◽  
Author(s):  
T. Häfner ◽  
J. Strauß ◽  
C. Roider ◽  
J. Heberle ◽  
M. Schmidt
Keyword(s):  
Laser Beam ◽  
Beam Shaping ◽  
Laser Beam Shaping
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