Zobrazeno 1 - 10
of 2 776
pro vyhledávání: '"Z M Sheng"'
Publikováno v:
Matter and Radiation at Extremes, Vol 9, Iss 3, Pp 037201-037201-8 (2024)
The generation of ultrashort high-power light sources in the mid-infrared (mid-IR) to terahertz (THz) range is of interest for applications in a number of fields, from fundamental research to biology and medicine. Besides conventional laser technolog
Externí odkaz:
https://doaj.org/article/315c2a6c07be4048afdf4e596e6203f2
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 8, p 081301 (2024)
A terahertz radiation enhancing scheme, in which a linearly polarized weakly relativistic laser pulse irradiates a target consisting of two parallel thin-solid layers with a certain gap, is proposed and studied by using two-dimensional particle-in-ce
Externí odkaz:
https://doaj.org/article/6c46958fb66741bc84ea4eebdccf86b7
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 7, p 071301 (2024)
We present a laser-assisted electron injection scheme for beam-driven plasma wakefield acceleration. The laser is collinear with the driver and triggers the injection of hot electrons into the plasma wake by interaction with a thin solid target. We p
Externí odkaz:
https://doaj.org/article/46024c09d6b44ed9bd5a2fb0e6a3fc71
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
Polarized electron beam production via laser wakefield acceleration in pre-polarized plasma is investigated by particle-in-cell simulations. The evolution of the electron beam polarization is studied based on the Thomas–Bargmann–Michel–Telegdi
Externí odkaz:
https://doaj.org/article/6761667b0b8146dd898d195358c3fcbe
Autor:
X. F. Li, S. M. Weng, P. Gibbon, H. H. Ma, S. H. Yew, Z. Liu, Y. Zhao, M. Chen, Z. M. Sheng, J. Zhang
Publikováno v:
Matter and Radiation at Extremes, Vol 8, Iss 6, Pp 065601-065601-11 (2023)
Broadband lasers have been proposed as future drivers of inertial confined fusion (ICF) to enhance the laser–target coupling efficiency via the mitigation of various parametric instabilities. The physical mechanisms involved have been explored rece
Externí odkaz:
https://doaj.org/article/0324ffaf73f744a18ace01b01f226da7
Autor:
Amit D. Lad, Y. Mishima, Prashant Kumar Singh, Boyuan Li, Amitava Adak, Gourab Chatterjee, P. Brijesh, Malay Dalui, M. Inoue, J. Jha, Sheroy Tata, M. Trivikram, M. Krishnamurthy, Min Chen, Z. M. Sheng, K. A. Tanaka, G. Ravindra Kumar, H. Habara
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract Bright, energetic, and directional electron bunches are generated through efficient energy transfer of relativistic intense (~ 1019 W/cm2), 30 femtosecond, 800 nm high contrast laser pulses to grating targets (500 lines/mm and 1000 lines/mm)
Externí odkaz:
https://doaj.org/article/71868951b6584f4d8782602bc44dd0d1
Autor:
Rakesh Y Kumar, Ratul Sabui, R Gopal, Feiyu Li, Soubhik Sarkar, William Trickey, M Anand, John Pasley, Z-M Sheng, R M G M Trines, R H H Scott, A P L Robinson, V Sharma, M Krishnamurthy
Publikováno v:
New Journal of Physics, Vol 26, Iss 3, p 033027 (2024)
Laser plasma electron acceleration from the interaction of an intense femtosecond laser pulse with an isolated microparticle surrounded by a low-density gas is studied here. Experiments presented here show that optimized plasma tailoring by introduci
Externí odkaz:
https://doaj.org/article/1f46c6df55c1418db107a7f26392601d
Autor:
Y. X. Wang, S. M. Weng, P. Li, Z. C. Shen, X. Y. Jiang, J. Huang, X. L. Zhu, H. H. Ma, X. B. Zhang, X. F. Li, Z. M. Sheng, J. Zhang
Publikováno v:
High Power Laser Science and Engineering, Vol 11 (2023)
As a typical plasma-based optical element that can sustain ultra-high light intensity, plasma density gratings driven by intense laser pulses have been extensively studied for wide applications. Here, we show that the plasma density grating driven by
Externí odkaz:
https://doaj.org/article/d11f1a223957479ab2bc32dad4de8397
Publikováno v:
Journal of Physics Communications, Vol 7, Iss 3, p 035002 (2023)
Simultaneous self-focusing and compression of ultrashort weakly-relativistic Laguerre–Gaussian laser pulses in dense plasma is investigated theoretically and numerically. A simple theoretical model is developed and used to identify parameter regime
Externí odkaz:
https://doaj.org/article/1c207e7ee32b4070b63f7015d49e17e7
Publikováno v:
Matter and Radiation at Extremes, Vol 6, Iss 5, Pp 055902-055902-8 (2021)
Sunlight-like lasers that have a continuous broad frequency spectrum, random phase spectrum, and random polarization are formulated theoretically. With a sunlight-like laser beam consisting of a sequence of temporal speckles, the resonant three-wave
Externí odkaz:
https://doaj.org/article/20a8271b8df842edb10d489e46907f48