scholarly journals Efficient and high-throughput ablation of platinum using high-repetition rate radially and azimuthally polarized sub-picosecond laser pulses

2021 ◽  
Vol 29 (13) ◽  
pp. 19551
Author(s):  
André Loescher ◽  
Paul Oldorf ◽  
Rigo Peters ◽  
Wolfgang Pallmann ◽  
Bojan Resan ◽  
...  
Keyword(s):  
High Throughput ◽  
Repetition Rate ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
High Repetition Rate ◽  
High Repetition ◽  
Picosecond Laser Pulses

scholarly journals Direct Waveguide Writing with High Energy High Repetition Rate Picosecond Laser Pulses

2012 ◽  
Vol 39 ◽  
pp. 621-627 ◽  
Author(s):  
Ilya Alexeev ◽  
Kristian Cvecek ◽  
Jan Genser ◽  
Michael Schmidt
Keyword(s):  
Repetition Rate ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
High Energy ◽  
High Repetition Rate ◽  
High Repetition ◽  
Picosecond Laser Pulses

scholarly journals High-energy, high-repetition-rate ultraviolet pulses from an efficiency-enhanced, frequency-tripled laser

2021 ◽  
Vol 9 ◽  
Author(s):  
Xinlin Lü ◽  
Yujie Peng ◽  
Wenyu Wang ◽  
Yuanan Zhao ◽  
Xiangyu Zhu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Repetition Rate ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
High Energy ◽  
High Repetition Rate ◽  
Uv Laser ◽  
Double Pass ◽  
High Repetition ◽  
Spatial Domains

Abstract In this study, a high-energy, temporally shaped picosecond ultraviolet (UV) laser running at 100 Hz is demonstrated, with its pulses boosted to 120 mJ by cascaded regenerative and double-pass amplifiers, resulting in a gain of more than 108. With precise manipulation and optimization, the amplified laser pulses were flat-top in the temporal and spatial domains to maintain high filling factors, which significantly improved the conversion efficiency of the subsequent third harmonic generation (THG). Finally, 91 mJ, 470 ps pulses were obtained at 355 nm, corresponding to a conversion efficiency as high as 76%, which, as far as we are aware of, is the highest THG efficiency for a high-repetition-rate picosecond laser. In addition, the energy stability of the UV laser is better than 1.07% (root mean square), which makes this laser an attractive source for a variety of fields including laser conditioning and micro-fabrication.

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