A simulation of laser energy absorption by a nanowired surface

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art_VASCONCELOS_A_simulation_of_laser_energy_absorption_by_a_2019.PDF.pdf (1.85 MB)
Citações na Scopus
Tipo de produção
conferenceObject
Data de publicação
2019
Web of Science
Título da Revista
ISSN da Revista
Título do Volume
Editora
IEEE
Autores
VASCONCELOS, Miguel F. S.
Citação
2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC), 2019
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
The quest for strategies for performing nuclear fusion induced by laser remains open despite recent experiments demonstrating energy gain. A major challenge of the field is to surmount the plasma shielding which prevents the deposition of larger fractions of the energy of the laser rays into the target. Recently, a petawatt laser and computer simulations were used to show that a nanowired surface enables the trapping of the rays and the formation of a high density plasma. Here we simulate the laser target interaction considering a 0.5 TW laser and compare the energy absorption by both a smoothed and a nanowired target. We show that the nanowires enable a stronger laser-target coupling despite the absence of the trapping of the rays. Our results point out on the necessity of a deeper understanding of the mechanisms underlying the higher absorption of the laser energy by the nanowired surfaces.
Palavras-chave
laser, plasma, nanowired target
URI
https://observatorio.fm.usp.br/handle/OPI/36604
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Coleções
Comunicações em Eventos - LIM/24