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Multichannel Doppler fiber-imager spectrometer for spatiotemporal characterization of high-intensity laser-driven plasmas.
Zeraouli, G; Marconi, M; Sullivan, B; Wang, S; Anaraki, S Zahedpour; Hollinger, R; Shlyaptsev, S; Mariscal, D; Rocca, J J.
Afiliación
  • Zeraouli G; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Marconi M; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Sullivan B; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Wang S; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Anaraki SZ; XUV Lasers, Fort Collins, Colorado 80523, USA.
  • Hollinger R; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Shlyaptsev S; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Mariscal D; Colorado State University, Fort Collins, Colorado 80523, USA.
  • Rocca JJ; Colorado State University, Fort Collins, Colorado 80523, USA.
Rev Sci Instrum ; 95(4)2024 Apr 01.
Article en En | MEDLINE | ID: mdl-38619372
ABSTRACT
We demonstrate a flexible multichannel fiber-based imaging Doppler spectrometer to characterize plasmas in high intensity (≥1 × 1018 W/cm2) laser-plasma experiments at high repetition rates. This instrument collects data from ×21 different plasma locations combining optical fibers and a single imaging spectrometer. This diagnostic maps the plasma velocity evolution as a function of time with sub-pico-second resolution. Experimental results showing 2D velocity measurements of plasma with 20 µm spatial resolution are presented. Intensities of the order of 1018 W/cm2 were used to generate a plasma, while a much less intense, frequency doubled (400 nm), probe beam (1011 W/cm2) was used to measure the Doppler shift from the plasma critical surface. The instrument can be scaled to a larger number of channels (e.g., 100) still using a single spectrometer.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos