Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Nilson Dias Vieira"'
Autor:
Maria Valéria Robles Velasco, Tania Cristina de Sá Dias, Anderson Zanardi de Freitas, Nilson Dias Vieira Júnior, Claudinéia Aparecida Sales de Oliveira Pinto, Telma Mary Kaneko, André Rolim Baby
Publikováno v:
Brazilian Journal of Pharmaceutical Sciences, Vol 45, Iss 1, Pp 153-162 (2009)
The hair thread is a natural fiber formed by keratin, a protein containing high concentration of sulfur coming from the amino acid cystine. The main physical proprieties of the hair depend mostly on its geometry; the physical and mechanical propertie
Externí odkaz:
https://doaj.org/article/719fab6f33e743ec84aca7bc9409d53d
Publikováno v:
Journal of Technology Management & Innovation, Vol 3, Iss 4 (2009)
In this work, we focus on the role of Information and Communication Technologies – ICT - to create additional sources of competitive advantage that can help companies to prepare themselves for sustainable growth in the long term. First, we discuss
Externí odkaz:
https://doaj.org/article/a344612b7ca442aeb17643aef709c69c
Publikováno v:
Applied Optics. 62:3202
Simulations of transitional self-modulated laser wakefield acceleration driven by laser pulses of a few terawatts are discussed, comparing a downramp-based injection regime with an ionization injection regime. We demonstrate that a configuration usin
Autor:
Edison Puig Maldonado, Ricardo Elgul Samad, Armando Valter Felicio Zuffi, Jhonatha Ricardo dos Santos, Nilson Dias Vieira
Publikováno v:
Journal of the Optical Society of America B. 40:C141
Laser wakefield electron acceleration with ionization injection has rarely been studied in the low-power, self-modulated case. We performed simulations of such regimes using a mixture of He and N2 gases and driven by laser pulses with peak powers aro
Autor:
Armando Valter Felicio Zuffi, Jhonatha Ricardo dos Santos, Edison Puig Maldonado, Nilson Dias Vieira, Ricardo Elgul Samad
Publikováno v:
Applied Optics. 62:C128
Side-view density profiles of a laser-induced plasma were measured by a home-built, time-resolved, Mach–Zehnder-like interferometer. Due to the pump-probe femtosecond resolution of the measurements, the plasma dynamics was observed, along with the
Publikováno v:
Physical Review A. 105
Publikováno v:
Latin America Optics and Photonics (LAOP) Conference 2022.
We discuss the results of simulating a laser wakefield accelerator in the 50 MeV range suitable for repetition rates > 10 Hz using commercial lasers and compare with other approaches for this purpose.
Publikováno v:
Latin America Optics and Photonics (LAOP) Conference 2022.
We report the saturation of the third harmonic generated in Helium by ultrashort laser pulses, and describe the observed plateau based on the depletion of the electrons generating the harmonics in a restricted interaction volume.
Publikováno v:
Latin America Optics and Photonics (LAOP) Conference 2022.
This work reports measurements of the density profile of laser-generated plasmas by a home-built time-resolved Mach-Zehnder-like interferometer. This device will integrate our laboratory infrastructure for laser wakefield acceleration experiments.
Autor:
Sudeep Banerjee, Ricardo E. Samad, Alexandre Bonatto, Edison Puig Maldonado, Roger Pizzato Nunes, Nilson Dias Vieira
Publikováno v:
2021 SBFoton International Optics and Photonics Conference (SBFoton IOPC).
We review the fundamentals of electron beam generation in self-modulated laser wakefield acceleration (SM-LWFA) using laser pulses with peak powers on the TW and sub-TW scale. The results of several new particle-in-cell simulations for λ = 0.8 µm a