D. Wu,
W. Yu,
Z. Sheng,
S. Fritzsche,
and X. He
Uniform warm dense matter formed by direct laser heating in the presence of external magnetic fields
Phys. Rev. E, 101 :051202 (May 2020)
Uniform warm dense matter formed by direct laser heating in the presence of external magnetic fields
Phys. Rev. E, 101 :051202 (May 2020)
Abstract:
With the recent realization of kilotesla quasistatic magnetic fields, the interaction of a laser with magnetized solids enters an unexplored new regime. In particular, a circularly polarized (CP) laser pulse may propagate in a highly magnetized plasma of any high density without encountering cutoff reflection in the whistler mode. With this, we propose a scheme for producing uniform warm dense matter (WDM) by direct laser heating with a CP laser irradiating onto the target along the magnetic field. It is shown by particle-in-cell simulations, which include advanced ionization dynamics and collision dynamics, moderately intense right-hand CP laser light at 1015W/cm2 can propagate in solid aluminum and heat it efficiently to the 100 eV level within picoseconds. By using two laser pulses irradiating from two sides of a thin solid target, uniform heating to WDM can be achieved. This provides a controllable way to create WDM at different temperatures.