Faraday-rotation method for magnetic-field diagnostics in a laser plasma

Measuring the magnetic field of a magnetized plasma using Raman scattering

“…17 and 18. Before we summarize the works, it may be inspiring to compare the proposed idea with the Faraday rotation, 19,20 which is a well-known, robust method of measuring the magnetic field of a magnetized plasma. The rotation angle of the electric field polarization induced by the phase velocity difference of right-handed-and left-handed circularly polarized waves is described by /½rad ¼ 2:62 Â 10 À17 k 2 n e Bd in cgs unit, where k and d are the wave length and propagation distance of the pump pulse, respectively.…”

Diagnosing collisions of magnetized, high energy density plasma flows using a combination of collective Thomson scattering, Faraday rotation, and interferometry (invited)

“…The approximation is only valid within certain limits, however for the plasma parameter space accessed in typical Magpie experiments (n e ∼ 10 18 cm −3 , B ∼ 1 T, and λ = 10 -6 m) it can be shown that it may be used safely in almost all cases where the field is not entirely orthogonal to the probe. 18,31 The equation can be further approximated by replacing the path integral n e B · dz with the product of the areal electron density n e dZ and average magnetic field parallel to the probeB . Rearrangement leads to an expression forB : A schematic diagram of the overall Faraday rotation diagnostic is shown in Figure 4(a).…”

Laser-driven relativistic electron beam interaction with solid dielectric

“…The magnetic field and electric field measurements are similar to those described for water discharges in [8] (Faraday effect) and in [9] (Kerr effect). The measurement technique was described in a detail in [10]. Figure 8 shows a set of Faraday and shadow images of laser-glass interactions (I ~ 2⋅10 18 W/cm 2 ) at 1.7, 3.3, 10 and 40 ps.…”