Development of Polarization Interferometer Based on Fourier Transform Spectroscopy for Thomson Scattering Diagnostics

Abstract

A high-throughput polarization interferometer is being developed to demonstrate for the first time the utility of Fourier transform spectroscopy for Thomson scattering diagnostics of high temperature plasma. Target T_e and n_e ranges for the prototype polarization interferometer are < 1 keV and > 5 × 10¹⁸ m^-3 , respectively. This paper describes the design of the polarization interferometer and the results of initial tests.