High precision scribing of solar cell films by a picosecond laser

2010 ◽  
Author(s):  
Wenqian Hu ◽  
Yung C. Shin
Keyword(s):  
Solar Cell ◽  
High Precision ◽  
Picosecond Laser

High-power picosecond laser diodes based on different methods of fast gain control for high-precision radar applications

2007 ◽  
Author(s):  
Sergey Vainshtein ◽  
Juha Kostamovaara ◽  
Vladimir Lantratov ◽  
Nikolay Kaluzhniy ◽  
Sergey Mintairov
Keyword(s):  
High Precision ◽  
High Power ◽  
Laser Diodes ◽  
Gain Control ◽  
Picosecond Laser ◽  
Radar Applications

High-precision micro-through-hole array in quartz glass machined by infrared picosecond laser

2015 ◽  
Vol 121 (3) ◽  
pp. 1163-1169 ◽  
Author(s):  
Lingfei Ji ◽  
Yan Hu ◽  
Jian Li ◽  
Wenhao Wang ◽  
Yijian Jiang
Keyword(s):  
High Precision ◽  
Quartz Glass ◽  
Picosecond Laser ◽  
Hole Array ◽  
Through Hole

scholarly journals Sub-Picosecond Micromachining of Monocrystalline Silicon for Solar Cell Manufacturing

2020 ◽  
Vol 10 (20) ◽  
pp. 7277
Author(s):  
Katarzyna Garasz ◽  
Marek Kocik
Keyword(s):  
Solar Cell ◽  
Picosecond Laser ◽  
Processing Parameters ◽  
Optimal Parameters ◽  
Ultrashort Pulse Laser ◽  
Reliable Source ◽  
Laser Systems ◽  
Cost Efficient ◽  
Telecentric Lens

In this study a prototype sub-picosecond laser was investigated for cutting and scribing of silicon wafers. The Yb:KYW laser used for this investigation, unlike ultrashort systems used previously, generates pulses of 650 fs, i.e., between the pico and femtosecond range. The laser was placed in a micromachining setup, involving a galvo scanner and a telecentric lens. A study of the influence of the processing parameters on the crater width, depth, and quality of machining was carried out. The optimal parameters were found to be 343 nm, 200 kHz, 7 mm/s, and 15 pattern repetitions. The experiments were performed using samples of a silicon wafer of 210-µm thickness. The experimental results show that the sub-picosecond laser can be a promising and competitive tool for solar cell micromachining. In comparison to the commercially available ultrashort pulse laser systems, we find the sub-picosecond laser to be a more cost efficient and reliable source, than a femtosecond one. In addition, the prototype Yb:KYW design offers some unique parameters, such as repetition rate in the range of 100–400 kHz, UV wavelength or obtainable laser fluence close to the silicon ablation thresholds.

High-precision surface ablation of soft tissue using the fifth harmonic of a Nd:YLF picosecond laser at 211 nm

1996 ◽  
Author(s):  
Josef F. Bille ◽  
Joerg P. Fischer ◽  
T. Juhasz ◽  
Frieder H. Loesel ◽  
I. Mueller-Vogt ◽  
...  
Keyword(s):  
Soft Tissue ◽  
High Precision ◽  
Picosecond Laser ◽  
Surface Ablation

scholarly journals A high-beam-quality, high-pulse-energy picosecond laser system for high precision ultra-remote laser ranging

2019 ◽  
Vol 64 (17) ◽  
pp. 1761-1762 ◽  
Author(s):  
Zhongwei Fan ◽  
Yutao Huang ◽  
Xiaochao Yan ◽  
Guangyan Guo ◽  
en Zh ◽  
...  
Keyword(s):  
High Precision ◽  
Pulse Energy ◽  
Beam Quality ◽  
Laser System ◽  
Picosecond Laser ◽  
Laser Ranging ◽  
High Pulse Energy ◽  
High Beam ◽  
High Pulse ◽  
High Beam Quality

High precision space debris laser ranging with 4.2 W double-pulse picosecond laser at 1 kHz in 532nm

Optik ◽  
2019 ◽  
Vol 179 ◽  
pp. 691-699 ◽  
Author(s):  
Zhongping Zhang ◽  
Haifeng Zhang ◽  
MingLiang Long ◽  
Huarong Deng ◽  
Zhibo Wu ◽  
...  
Keyword(s):  
High Precision ◽  
Space Debris ◽  
Picosecond Laser ◽  
Double Pulse ◽  
Laser Ranging

Multifrequency picosecond laser for high-precision ranging and atmospheric sounding

1998 ◽  
Author(s):  
Helena Jelinkova ◽  
Miroslav Cech ◽  
Karel Hamal ◽  
Vaclav Kubecek ◽  
Antonin Novotny ◽  
...  
Keyword(s):  
High Precision ◽  
Picosecond Laser ◽  
Atmospheric Sounding

Deep and high precision cutting of alumina ceramics by picosecond laser

2020 ◽  
Vol 46 (10) ◽  
pp. 15285-15296 ◽  
Author(s):  
C. Beausoleil ◽  
H. Yazdani Sarvestani ◽  
Z. Katz ◽  
J. Gholipour ◽  
B. Ashrafi
Keyword(s):  
High Precision ◽  
Picosecond Laser ◽  
Alumina Ceramics
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