Femtosecond laser direct writing of a Fresnel zone plate in glasses for mid-infrared imaging applications

2021 ◽  
Author(s):  
Pierre Delullier ◽  
Guillaume Druart ◽  
Florence de la Barrière ◽  
Laurent Calvez ◽  
Matthieu Lancry
Keyword(s):  
Femtosecond Laser ◽  
Infrared Imaging ◽  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Mid Infrared

Sapphire-Based Fresnel Zone Plate Fabricated by Femtosecond Laser Direct Writing and Wet Etching

2016 ◽  
Vol 28 (12) ◽  
pp. 1290-1293 ◽  
Author(s):  
Qian-Kun Li ◽  
Yan-Hao Yu ◽  
Lei Wang ◽  
Xiao-Wen Cao ◽  
Xue-Qing Liu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fresnel Zone ◽  
Wet Etching ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Direct Writing ◽  
Laser Direct Writing

High fill-factor multilevel Fresnel zone plate arrays by femtosecond laser direct writing

2011 ◽  
Vol 284 (3) ◽  
pp. 777-781 ◽  
Author(s):  
Li-Gang Niu ◽  
Dian Wang ◽  
Tong Jiang ◽  
Si-Zhu Wu ◽  
Ai-Wu Li ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fill Factor ◽  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
High Fill Factor ◽  
Fresnel Zone Plate Arrays

Femtosecond laser-ablated Fresnel zone plate fiber probe and sensing applications

2018 ◽  
Vol 57 (02) ◽  
pp. 1
Author(s):  
Xiaoling Tan ◽  
Youfu Geng ◽  
Yan Chen ◽  
Shiguo Li ◽  
Xinzhong Wang
Keyword(s):  
Femtosecond Laser ◽  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Fiber Probe ◽  
Sensing Applications

Fresnel zone plate array fabricated by femtosecond laser

2021 ◽  
Author(s):  
Peichao Wu ◽  
Xiaowen Cao ◽  
Ji Wang ◽  
Zhihao Chen ◽  
Hongbin Yuan ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fresnel Zone ◽  
Zone Plate ◽  
Fresnel Zone Plate ◽  
Plate Array

scholarly journals MXene Ti3C2Tx saturable absorber for passively Q-switched mid-infrared laser operation of femtosecond-laser–inscribed Er:Y2O3 ceramic channel waveguide

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2495-2503 ◽  
Author(s):  
Qingyu Tian ◽  
Peng Yin ◽  
Teng Zhang ◽  
Lunbin Zhou ◽  
Bin Xu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Output Power ◽  
Saturable Absorber ◽  
Continuous Wave ◽  
Channel Waveguide ◽  
Saturable Absorption ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Reliable Technique ◽  
Mid Infrared

AbstractWe report on an Er:Y2O3 ceramic channel waveguide laser operating at continuous-wave and passively Q-switched regimes, for the first time to the best of our knowledge. The Er:Y2O3 ceramic channel waveguide has been fabricated by a femtosecond laser direct-writing technique. The maximum output power reached 123.5 mW in continuous-wave mode with a slope efficiency of about 21%, and the lasing behavior has been found simultaneously at 2710.28, 2716.76, and 2723.18 nm. We have further fabricated an MXene Ti3C2Tx saturable absorber mirror to operate the Er:Y2O3 waveguide in passively Q-switched regime. At the same time, property of the MXene Ti3C2Tx saturable absorber has been characterized, and nonlinear saturable absorption of the saturable absorber has also been measured. The average output power is about 67.6 mW, and the shortest pulse width is about 58.1 ns. This work indicates that femtosecond laser direct writing is a reliable technique for processing mid-infrared ceramic waveguides, and MXene Ti3C2Tx is promising for operating pulsed mid-infrared lasers.

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