Effects of ultraintense magnetic fields due to relativistic laser-plasma interactions on Langmuir-wave-caused dips in x-ray spectral line profiles

2019 ◽  
Vol 157 ◽  
pp. 1-5 ◽  
Author(s):  
E. Oks ◽  
E. Dalimier ◽  
P. Angelo
Keyword(s):  
Magnetic Fields ◽  
Spectral Line ◽  
Laser Plasma ◽  
Langmuir Wave ◽  
Line Profiles ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions

scholarly journals X-ray Spectroscopy Based Diagnostic of GigaGauss Magnetic Fields during Relativistic Laser-Plasma Interactions

Atoms ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 60 ◽  
Author(s):  
Elisabeth Dalimier ◽  
Eugene Oks
Keyword(s):  
Magnetic Fields ◽  
Laser Plasma ◽  
Langmuir Wave ◽  
Laser Frequency ◽  
Spectroscopic Studies ◽  
Magnetized Plasma ◽  
Line Profiles ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions

GigaGauss (GG), and even multi-GG magnetic fields are expected to be developed during relativistic laser-plasma interactions. Sub-GG magnetic fields were previously measured by a method using the self-generated harmonics of the laser frequency, and the fact that the magnetized plasma is birefringent and/or optically active depending on the propagation direction of the electromagnetic wave. In the present short communication, we outline an idea for a method of measuring GG magnetic fields based on the phenomenon of Langmuir-wave-caused dips (L-dips) in X-ray line profiles. The L-dips were observed in several experimental spectroscopic studies of relativistic laser-plasma interactions. Ultrastrong magnetic fields affect the separation of the L-dips from one another, so that this relative shift can be used to measure such fields.

scholarly journals Mini-Review of Intra-Stark X-ray Spectroscopy of Relativistic Laser–Plasma Interactions

Atoms ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 45 ◽  
Author(s):  
Elisabeth Dalimier ◽  
Tatiana A. Pikuz ◽  
Paulo Angelo
Keyword(s):  
Spectral Line ◽  
Laser Plasma ◽  
Acoustic Waves ◽  
Critical Density ◽  
Langmuir Wave ◽  
Intense Laser ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions ◽  
Ion Acoustic

Intra-Stark spectroscopy (ISS) is the spectroscopy within the quasi-static Stark profile of a spectral line. The present paper reviews the X-ray ISS-based studies recently advanced for the diagnostics of the relativistic laser–plasma interactions. By improving experiments performed on the Vulcan Petawatt (PW) laser facility at the Rutherford Appleton Laboratory (RAL), the simultaneous production of the Langmuir waves and of the ion acoustic turbulence at the surface of the relativistic critical density gave the first probe by ISS of the parametric decay instability (PDI) predicted by PIC simulations. The reliable reproducibility of the experimental signatures of PDI—i.e., the Langmuir-wave-induced dips—allowed measurements of the fields of the Langmuir and ion acoustic waves. The parallel theoretical study based on a rigorous condition of the dynamic resonance depending on the relative values of the ion acoustic and the Langmuir fields could explain the disappearance of the Langmuir dips as the Langmuir wave field increases. The ISS used for the diagnostic of the PDI process in relativistic laser–plasma interactions has reinforced the reliability of the spectral line shape while allowing for all broadening mechanisms. The results can be used for a better understanding of intense laser–plasma interactions and for laboratory modelling of physical processes in astrophysical objects.

Coded aperture x-ray imaging of high power laser-plasma interactions on the Vulcan Laser System

2018 ◽  
Author(s):  
Robert I. Heathcote ◽  
Nicola Booth ◽  
Robert J. Clarke ◽  
Asha Anderson-Asubonteng ◽  
Matthew P. Selwood ◽  
...  
Keyword(s):  
High Power ◽  
Laser Plasma ◽  
Laser System ◽  
Coded Aperture ◽  
High Power Laser ◽  
Power Laser ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions ◽  
X Ray Imaging

Time resolved x-ray image of laser plasma interactions using a dilation framing camera

Optik ◽  
2019 ◽  
Vol 186 ◽  
pp. 374-378 ◽  
Author(s):  
Wenyong Fu ◽  
Houzhi Cai ◽  
Dong Wang ◽  
Yunfei Lei ◽  
Jinyuan Liu
Keyword(s):  
Laser Plasma ◽  
Time Resolved ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions ◽  
Framing Camera

scholarly journals Absorption and x-ray measurements from ultra-intense laser-plasma interactions

1993 ◽  
Author(s):  
Daniel E. Klem ◽  
Christopher B. Darrow ◽  
Stephen M. Lane ◽  
Michael D. Perry
Keyword(s):  
Laser Plasma ◽  
Intense Laser ◽  
Plasma Interactions ◽  
X Ray ◽  
Laser Plasma Interactions
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