Research Articles
A 3.5-kW near-single-mode oscillating–amplifying integrated fiber laser
Lingfa Zeng, Xiaolin Wang, Baolai Yang, Hanwei Zhang, and Xiaojun Xu
High Power Laser Science and Engineering
  • Jul. 27, 2021
  • Vol.9, Issue 3 (2021)
Research Articles
High-resolution X-ray flash radiography of Ti characteristic lines with multilayer Kirkpatrick–Baez microscope at the Shenguang-II Update laser facility
High Power Laser Science and Engineering
  • Jul. 27, 2021
  • Vol.9, Issue 3 (2021)
Research Articles
Time-dependent measurement of high-power laser light reflection by low-Z foam plasma
M. Cipriani, S. Yu. Gus’kov, F. Consoli, R. De Angelis, A. A. Rupasov, P. Andreoli, G. Cristofari, G. Di Giorgio, and M. Salvadori
High Power Laser Science and Engineering
  • Jul. 20, 2021
  • Vol.9, Issue 3 (2021)
Research Articles
Utilizing phase-shifted long-period fiber grating to suppress spectral broadening of a high-power fiber MOPA laser system
High Power Laser Science and Engineering
  • Jul. 15, 2021
  • Vol.9, Issue 3 (2021)
Research Articles
High-energy, high-repetition-rate ultraviolet pulses from an efficiency-enhanced, frequency-tripled laser
Xinlin Lü, Yujie Peng, Wenyu Wang, Yuanan Zhao, Xiangyu Zhu, and Yuxin Leng
High Power Laser Science and Engineering
  • Jul. 15, 2021
  • Vol.9, Issue 3 (2021)
HPL Highlights
The mid-infrared wavelength ranges from 2 to 15 μm is of great interest for many interesting applications such as remote sensing and free-space optical communications, but this spectral range has not been fully explored due to the lack of laser sources. In particular, the 3-8 μm range is called of the "molecular fingerprint" region because of the abundant absorption lines from almost most chemicals. These molecular fingerprints are very useful for chemical sensing in combination with broadband or tunable mid-infrared laser beams.
High Power Laser Science and Engineering
  • Jul. 08, 2021
  • Vol.9, Issue 2 (2021)
HPL Highlights
Photoionized plasma is an important existing form of plasmas in the universe. Celestial objects, such as AGN and X-ray binary, can emit strong radiation field and the high energy photos can ionize the surrounding gases. Thus, the low temperature gases can emit lines of highly ionized ions. The He-α lines are important method to diagnose the electron temperature and density of photoionized plasmas. As the development of the high energy density physics, the photoionized plasmas have been produced in the laboratories. In 2009, Fujioka et al. used the GEKKO-XII laser facility to produce photoionized silicon plasma. The experimental spectrum, the black solid line in Figure 1, is similar as that of Vela X-1, which is a typical X-ray binary. To simulate and illustrate the experimental spectrum is always a difficult problem, where the peak around 1855 eV (intercombination line) is always absent in the simulations.
High Power Laser Science and Engineering
  • Jun. 15, 2021
  • Vol.9, Issue 1 (2021)
News
The article entitled "Laser produced electromagnetic pulses: generation, detection and mitigation" was selected as the 2020 High Power Laser Science and Engineering Editor-in-Chief Choice Award paper.
High Power Laser Science and Engineering
  • May. 17, 2021
  • Vol.8, Issue 2 (2021)
HPL Highlights
Targets are physical base of laser inertial confinement fusion (ICF) research, whose quality has extremely important influences on the reliability and degree of precision for subsequent ICF experimental results. At present, the degradable mandrel technique with poly-α-methylstyrene (PAMS) degradation as the core has become one of the key technologies for fabricating ICF target. Its general process can be divided into three steps: first, hollow PAMS microspheres are prepared as mandrel, then plasma vapor deposition technology is used to prepare a coating (glow discharge polymer, GDP) with higher thermal stability on the surface, and finally PAMS are degraded leaving the hollow GDP target. Although many reports have been devoted to the related process, there are still two key problems in the actual preparation of GDP, that is, how to reduce the thermal degradation temperature of PAMS and how to avoid residues in PAMS degradation. Considering that the general nature of degradation corresponds to the breaking of chemical bonds, it is urgent to grasp the physical laws of the complex degradation process of PAMS at the atomic level and construct the reliable model of mandrel degradation.
High Power Laser Science and Engineering
  • May. 14, 2021
  • Vol.9, Issue 1 (2021)
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