Zobrazeno 1 - 10
of 5 840
pro vyhledávání: '"Self-focusing"'
Publikováno v:
Optics, Vol 5, Iss 1, Pp 66-75 (2024)
The feasibility of introducing optical nonlinearity in poly-dimethyl siloxane (PDMS) using organic solvent swelling was investigated. The third-order nonlinear refraction and absorption properties of the individual materials, as well as the PDMS/solv
Externí odkaz:
https://doaj.org/article/f3107a21628242dd95b83960cb4cc119
Autor:
Kovalev, V. F.1 vfkvvfkv@gmail.com, Bychenkov, V. Yu.2,3
Publikováno v:
JETP Letters. Apr2018, Vol. 107 Issue 8, p458-463. 6p.
Publikováno v:
Journal of Applied Sciences and Nanotechnology, Vol 3, Iss 4, Pp 10-19 (2023)
This study describes the relativistic q-Gaussian laser beam's stimulated Raman scattering (SRS) in an unmagnetized plasma. Moreover, the influence of the pump laser's relativistic self-focusing on the SRS process has been investigated. Using variatio
Externí odkaz:
https://doaj.org/article/0e2b0567563542ab8840050476985304
Autor:
Mahboubeh Ghalandari
Publikováno v:
Mathematics and Computational Sciences, Vol 4, Iss 3, Pp 28-33 (2023)
In is paper, we have studied the propagation of spatial solitons in the medium with a spatially modulated nonlinearity. Wave equation includes the terms of diffraction and periodic self- focusing. To solve the wave equation, we have employed numerica
Externí odkaz:
https://doaj.org/article/c91fe0f4291b40bf89115afbc32afdd7
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
We demonstrate efficient and economical all-solid-state post-compression based on dual-stage periodically placed thin fused silica plates driven by a more than 100 W ytterbium-doped yttrium aluminum garnet Innoslab amplifier seeded by a fiber fronten
Externí odkaz:
https://doaj.org/article/e24c0a1cf2a043159ddc940435ce837f
Autor:
Shuren Pan, Fenxiang Wu, Yang Zhao, Jiabing Hu, Zongxin Zhang, Yi Xu, Yuxin Leng, Ruxin Li, Efim Khazanov
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
A novel method, combining an asymmetric four-grating compressor (AFGC) with pulse post-compression, is numerically demonstrated to improve the spatial uniformity of laser beams and hence to suppress small-scale self-focusing (SSSF) during the beam pr
Externí odkaz:
https://doaj.org/article/ba03e31fcb3f4cc6b3606f1d03d32e64
Autor:
Ruifeng Wang, Xiaoqi Zhang, Yanli Zhang, Fanglun Yang, Jianhao Tang, Ziang Chen, Jianqiang Zhu
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
Based on the paraxial wave equation, this study extends the theory of small-scale self-focusing (SSSF) from coherent beams to spatially partially coherent beams (PCBs) and derives a general theoretical equation that reveals the underlying physics of
Externí odkaz:
https://doaj.org/article/31b067b19fa24a45b78f5f386f4b0e5e
Autor:
Dmitry Silin, Efim Khazanov
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
The development of small-scale self-focusing in a nonlinear Kerr medium after preliminary self-filtering of a laser beam propagating in free space is studied numerically. It is shown that, under definite conditions, due to self-filtering, filamentati
Externí odkaz:
https://doaj.org/article/87e96c9b51fd4e35abf59ce80362a994
Autor:
Chong Shan, Lingbao Kong, Fujian Li, Yong Cui, Lailin Ji, Quan Zheng, Daxing Rao, Ruijing He, Xiaohui Zhao, Yuanan Zhao, Zhan Sui
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
The damage characteristics of fused silica were investigated under low-temporal coherence light (LTCL). It was found that the laser-induced damage threshold (LIDT) of fused silica for the LTCL was lower than that of the single longitudinal mode pulse
Externí odkaz:
https://doaj.org/article/582537d074dd4328bb37db2996681b18
Publikováno v:
Advanced Physics Research, Vol 3, Iss 1, Pp n/a-n/a (2024)
Abstract Thermal effects are inevitable when an absorptive nonlinear optical material interacts with long pulse duration or high repetition rate laser pulses. It results in inaccurate characterization and reduction in efficiency of the nonlinear mate
Externí odkaz:
https://doaj.org/article/2971f0d2cb9241b1b73c448a7326d60f