Femtosecond laser rapid fabrication of Janus sweat-permeable fabric for personal cooling

2020 ◽  
Vol 117 (21) ◽  
pp. 213701
Author(s):  
Shuai Yang ◽  
Zhuo Zhu ◽  
Zhipeng Wu ◽  
Junrui Wu ◽  
Kai Yin
Keyword(s):  
Femtosecond Laser ◽  
Rapid Fabrication ◽  
Personal Cooling

scholarly journals Rapid Fabrication of Continuous Surface Fresnel Microlens Array by Femtosecond Laser Focal Field Engineering

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 112 ◽  
Author(s):  
Linyu Yan ◽  
Dong Yang ◽  
Qihuang Gong ◽  
Yan Li
Keyword(s):  
Femtosecond Laser ◽  
Three Dimensional ◽  
Fresnel Lens ◽  
Two Dimensional ◽  
Direct Writing ◽  
Lens Array ◽  
Two Photon ◽  
Rapid Fabrication ◽  
Continuous Surface ◽  
Two Photon Polymerization

Femtosecond laser direct writing through two-photon polymerization has been widely used in precision fabrication of three-dimensional microstructures but is usually time consuming. In this article, we report the rapid fabrication of continuous surface Fresnel lens array through femtosecond laser three-dimensional focal field engineering. Each Fresnel lens is formed by continuous two-photon polymerization of the two-dimensional slices of the whole structure with one-dimensional scan of the corresponding two-dimensional engineered intensity distribution. Moreover, we anneal the lens array to improve its focusing and imaging performance.

Flexible and rapid fabrication of silver microheaters with spatial-modulated multifoci by femtosecond laser multiphoton reduction

2018 ◽  
Vol 43 (21) ◽  
pp. 5335 ◽  
Author(s):  
Dongdong Qian ◽  
Liang Yang ◽  
Yacao Zhang ◽  
Chen Xin ◽  
Zhijiang Hu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Rapid Fabrication

scholarly journals Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1468
Author(s):  
Manuel J. Pfeifenberger ◽  
Gabor Milassin ◽  
Anton Hohenwarter ◽  
Barbara Putz ◽  
Christopher O. A. Semprimoschnig ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Femtosecond Laser ◽  
Electron Irradiation ◽  
Laser Processing ◽  
Irradiation Effects ◽  
Femtosecond Laser Processing ◽  
Rapid Fabrication ◽  
Polymer Foils ◽  
Pet Foils ◽  
Strength And Ductility

The influence of irradiation on mechanical properties of polymer foils used in spacecraft applications has widely been studied via macroscopic tensile samples. An increase in the local resolution of this investigation can be achieved by reducing the sample’s dimensions. A femtosecond laser enables a fast fabrication of micro-samples with dimensions from tens of μ m to the mm range, with ideally no influence on the material. Tensile experiments using such micro-tensile samples were conducted on FEP, Upilex-S and PET foils. The influence of the laser processing on the polymer foils was evaluated. Additionally an investigation of degradation due to electron irradiation was performed. Furthermore an outlook to extend this technique to depth-resolved measurements by preparing samples from locally thinned foils is presented. The study demonstrates the feasibility of femtosecond laser processing for rapid fabrication of micro-samples, enabling insights into the effect of electron irradiation on local mechanical properties of polymers.

Rapid fabrication of optical volume gratings in Foturan glass by femtosecond laser micromachining

2009 ◽  
Vol 97 (4) ◽  
pp. 853-857 ◽  
Author(s):  
Fei He ◽  
Haiyi Sun ◽  
Min Huang ◽  
Jian Xu ◽  
Yang Liao ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Micromachining ◽  
Femtosecond Laser Micromachining ◽  
Rapid Fabrication ◽  
Volume Gratings

Rapid fabrication of high-resolution multi-scale microfluidic devices based on the scanning of patterned femtosecond laser

2020 ◽  
Vol 45 (14) ◽  
pp. 3929
Author(s):  
Chenchu Zhang ◽  
Jianming Zhang ◽  
Renfei Chen ◽  
Jiawen Li ◽  
Chaowei Wang ◽  
...  
Keyword(s):  
High Resolution ◽  
Femtosecond Laser ◽  
Microfluidic Devices ◽  
Multi Scale ◽  
Rapid Fabrication

Rapid Fabrication of Large-Area Concave Microlens Arrays on PDMS by a Femtosecond Laser

2013 ◽  
Vol 5 (19) ◽  
pp. 9382-9385 ◽  
Author(s):  
Jiale Yong ◽  
Feng Chen ◽  
Qing Yang ◽  
Guangqing Du ◽  
Hao Bian ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Large Area ◽  
Microlens Arrays ◽  
Rapid Fabrication
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