Fabrication of Large-Scale Free-Standing Terahertz Wire Grid Polarizer by Femtosecond Laser Micro-Machining

2020 ◽  
Vol 57 (11) ◽  
pp. 111424
Author(s):  
陈盈 Chen Ying ◽  
王杰 Wang Jie ◽  
高焘 Gao Tao ◽  
朱伟林 Zhu Weilin ◽  
王向峰 Wang Xiangfeng ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Large Scale ◽  
Micro Machining ◽  
Free Standing ◽  
Wire Grid ◽  
Scale Free ◽  
Laser Micro Machining ◽  
Wire Grid Polarizer

Metal Wire Grid Terahertz Polarizer Fabricated by Femtosecond Laser Micro-Machining

2018 ◽  
Vol 45 (8) ◽  
pp. 0802005 ◽  
Author(s):  
陈燕青 Chen Yanqing ◽  
高炳攀 Gao Bingpan ◽  
林炎章 Lin Yanzhang ◽  
居学尉 Ju Xuewei ◽  
王杰 Wang Jie ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Metal Wire ◽  
Micro Machining ◽  
Wire Grid ◽  
Laser Micro Machining

scholarly journals Free-standing double-layer terahertz band-pass filters fabricated by femtosecond laser micro-machining

2017 ◽  
Vol 25 (21) ◽  
pp. 25125 ◽  
Author(s):  
Yanzhang Lin ◽  
Haizi Yao ◽  
Xuewei Ju ◽  
Ying Chen ◽  
Shuncong Zhong ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Double Layer ◽  
Micro Machining ◽  
Free Standing ◽  
Terahertz Band ◽  
Laser Micro Machining ◽  
Band Pass

Substrateless Terahertz Band-Pass Filters Fabricated by Femtosecond Laser Micro-Machining

2018 ◽  
Vol 55 (2) ◽  
pp. 021415
Author(s):  
高炳攀 Gao Bingpan ◽  
林炎章 Lin Yanzhang ◽  
陈盈 Chen Ying ◽  
陈燕青 Chen Yanqing ◽  
王向峰 Wang Xiangfeng
Keyword(s):  
Femtosecond Laser ◽  
Micro Machining ◽  
Terahertz Band ◽  
Laser Micro Machining ◽  
Band Pass

Fabrication of large-scale freestanding THz wire grid polarizers by femtosecond laser micromachining

Optik ◽  
2020 ◽  
Vol 212 ◽  
pp. 164655
Author(s):  
Ying Chen ◽  
Jie Wang ◽  
Zhiqiang Hu ◽  
Tao Gao ◽  
Weilin Zhu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Large Scale ◽  
Laser Micromachining ◽  
Wire Grid ◽  
Femtosecond Laser Micromachining

Femtosecond laser micro-machining enabled all-fiber mode selective converter

2019 ◽  
Vol 44 (24) ◽  
pp. 5941 ◽  
Author(s):  
Cong Zhang ◽  
Zhuoying Li ◽  
Songnian Fu ◽  
Ming Tang ◽  
Deming Liu
Keyword(s):  
Femtosecond Laser ◽  
Micro Machining ◽  
Laser Micro Machining ◽  
Fiber Mode

FABRICATION AND CHARACTERIZATION OF BROADBAND TERAHERTZ WIRE-GRID POLARIZER

2010 ◽  
Vol 19 (04) ◽  
pp. 827-833 ◽  
Author(s):  
Z. C. CHEN ◽  
M. H. HONG ◽  
T. C. CHONG
Keyword(s):  
Time Domain ◽  
Quartz Substrate ◽  
Terahertz Wave ◽  
Mean Value ◽  
Frequency Range ◽  
Terahertz Time Domain Spectroscopy ◽  
Free Standing ◽  
Wire Grid ◽  
The Wire ◽  
Wire Grid Polarizer

A wire-grid terahertz polarizer fabricated on quartz substrate working in broadband is demonstrated. The transmission spectra of the fabricated wire-grid polarizer are characterized by terahertz time domain spectroscopy, showing the good performance of this polarizer in the terahertz frequency range up to 3.5 THz. The transmission of the peak in the time domain is 80% when the incident terahertz wave polarization is perpendicular to the wire-grid. The transmission of the peak is lower than 10% when the incident polarization is parallel to the wire-grid. The polarization factor ranges from 0.92–0.99 with the mean value of 0.97 in the frequency range from 0.1 to 3.5 THz, which is better than that of the free-standing wire-grid polarizer.

Periodic Nano-Structure Formation with Femtosecond Laser Ablation and Patterning of Silicon

2013 ◽  
Vol 275-277 ◽  
pp. 2186-2189
Author(s):  
Jian Ting Xu ◽  
Dong Qing Yuan
Keyword(s):  
Femtosecond Laser ◽  
Pulse Length ◽  
Femtosecond Laser Ablation ◽  
Objective Lens ◽  
Micro Machining ◽  
Nano Structure ◽  
Laser Micro Machining ◽  
Silicon Bulk ◽  
The Relationship ◽  
Focused Beam

Regular micro-apparatus which covered with periodic nano-hole, nano-ridge and ripple structures on silicon bulk were formed by laser micro-machining with tightly focused beam of the femtosecond laser with wavelength of 800 nm, repetition rate of 1 kHz and the pulse length of 130 fs in air. The periodic nano-hole structures which focus with a 20× focusing objective lens (NA = 0.4) is reported. Investigating the relationship between the width of structures and the speed of processing.

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