Heat transport measurement in ablation plasms with background corrected OTS*

Particle transport in laser ablated plasmas can be strongly influenced by non-Maxwellian features of the

electron distribution function. These features are strongest in high Z plasmas (1) , but these plasmas also

have the highest self emission, making detailed Thomson Scattering measurements difficult. Using a

Wollaston prism to make a novel background subtraction system based on light polarization (2) , we measure

the effects on electron landau damping and Langmuir waves of non-thermal Au plasmas with non-local

heat transport.

1) C Bruulsema, WA Farmer, M Sherlock, GF Swadling, M. D. Rosen, J. S. Ross, W. Rozmus Phys. Plasmas

29, 012304 (2022)

2) G.F. Swadling, J. Katz, RSI. 93,013501 (2022)