Femtosecond laser-plasma dynamics study by a time-resolved Mach–Zehnder-like interferometer

AVF Zuffi, J Ricardo dos Santos, EP Maldonado… - Applied Optics, 2023 - opg.optica.org
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 …

Simulation of self-modulated laser wakefield acceleration using few TW in downramp injection and ionization injection regimes

EP Maldonado, RE Samad, AVF Zuffi, ND Vieira Jr - Applied Optics, 2023 - opg.optica.org
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 …

Bayesian optimization of laser wakefield acceleration in the self-modulated regime (SM-LWFA) aiming to produce molybdenum-99 via photonuclear reactions

BS Nunes, SP Santos, RP Nunes, C Bonţoiu… - arXiv preprint arXiv …, 2024 - arxiv.org
While laser wakefield acceleration (LWFA) in the bubble regime demands ultra-short, high-
peak-power laser pulses, operation in the self-modulated regime (SM-LWFA) works with …

Ultrafast laser micromachining of submillimetric de Laval nozzles in alumina for laser electron acceleration

AVF Zuffi, FBD Tabacow, ND Vieira… - … Optics and Photonics …, 2022 - ieeexplore.ieee.org
We have explored the fabrication of submillimetric de Laval nozzles by ultrashort laser
pulses micromachining in alumina, a dielectric ceramic, to generate supersonic gas jets in …

Highly Enriched Uranium-Free Medical Radioisotope Production Methods: An Integrative Review

BS Nunes, ERF Rodrigues, JAP Fruscalso, RP Nunes… - Applied Sciences, 2022 - mdpi.com
The ever-growing need for radiopharmaceuticals, ie, compounds containing pharmaceutical
drugs and radioisotopes used for medical diagnostic imaging (SPECT/PET scan) and …

High intensity ultrashort laser pulses and their applications at IPEN

RE Samad, EP Maldonado, W de Rossi… - … Optics and Photonics …, 2021 - ieeexplore.ieee.org
Ultrashort laser pulses interact with matter in unique, nonselective ways, due to electronic
direct excitation in an ultrafast time scale. Additionally, these pulses can cover peak powers …

Decomposition Method to Speed Up Optimization Loops Containing Monte Carlo Simulations to Estimate Radioisotope Production

BS Nunes, A Bonatto, RE Samad - 2024 SBFoton International …, 2024 - ieeexplore.ieee.org
Monte Carlo simulations are an essential tool for modeling radioisotope production through
nuclear reactions. However, they can be computationally demanding, especially when …

Time-resolved femtosecond laser-plasma measurements by a Mach-Zehnder-like interferometer

AVF Zuffi, EP Maldonado, ND Vieira… - Latin America Optics …, 2022 - opg.optica.org
Conference title, upper and lower case, bolded, 18 point type, centered Page 1 Time-Resolved
Femtosecond Laser-Plasma Measurements by a Mach-Zehnder-Like Interferometer Armando …

Implementation of an Imaging System in a Spectrometer for Laser Accelerated Electrons

VMC Brandão, RE Samad - 2024 SBFoton International Optics …, 2024 - ieeexplore.ieee.org
We present here the development of an imaging system for an electron spectrometer aiming
at the characterization of laser-accelerated electrons. The spectrometer features a constant …

Ionization Model to Estimate the Density and Temperature Offs-Laser-Induced Plasmas in Air

AVF Zuffi, JR dos Santos… - … Conference on Optical …, 2023 - ieeexplore.ieee.org
We present a simple ionization model to assess the density of plasmas created in air by
ionization induced by the electric field of ultrashort laser pulses. It calculates the average …