Development of a polarization-modulation spectroscopy system for the temporally resolved measurement of linear polarization in plasma emission

Rev Sci Instrum. 2016 Oct;87(10):103507. doi: 10.1063/1.4965976.

Abstract

A system to measure linear polarization in the HeI 21P-31D emission line (667.8 nm) was developed for application to plasma polarization spectroscopy. To verify the system performance, the normalized Stokes parameters were evaluated. A measurement error of less than 1% with a time resolution of 1 ms was achieved for monochromatic light in the state of complete linear polarization.