Ultrafast Science, Volume. 3, Issue 1, 0039(2023)

Terawatt-Class Few-Cycle Short-Wave Infrared Vortex Laser

Renyu Feng1,2、†, Junyu Qian1、†, Yujie Peng1、*, Yanyan Li1, Wenkai Li1, Yuxin Leng1, and Ruxin Li1,3
Author Affiliations
  • 1State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China.
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
  • 3School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China.
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    As a driving source for many nonlinear vortex phenomena, such as the generation of isolated attosecond optical vortices, terahertz vortices, etc., terawatt-class few-cycle short-wave infrared vortex lasers are now attracting widespread attention. However, because the vortex characteristics of optical vortices are difficult to maintain in the amplification and compression stages, the generation of high-intensity few-cycle vortex lasers is still in the exploratory stage. In this article, we report 20-Hz, 18.6-mJ, 60-fs, and 1.45-μm infrared vortex lasers with 1, 2, and 3 topological charges successfully generated in an optical parametric chirped pulse amplification system. A clean intensity node at the beam center is observed and highly stable propagation in free space is demonstrated. Moreover, this high-energy vortex pulse is spectrally broadened in multiple thin plates and temporally compressed to 10.59 fs (2.2 optical cycles) with chirped mirrors, corresponding to a peak power of 1.08 TW, while highly preserving the vortex information. We believe that the generated high-energy few-cycle vortex laser has important applications from vortex optics to strong-field physics.

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    Renyu Feng, Junyu Qian, Yujie Peng, Yanyan Li, Wenkai Li, Yuxin Leng, Ruxin Li. Terawatt-Class Few-Cycle Short-Wave Infrared Vortex Laser[J]. Ultrafast Science, 2023, 3(1): 0039

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    Paper Information

    Category: Research Articles

    Received: Jul. 14, 2023

    Accepted: Oct. 4, 2023

    Published Online: May. 21, 2024

    The Author Email: Peng Yujie (yjpeng@siom.ac.cn)

    DOI:10.34133/ultrafastscience.0039

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