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Updated: Feb 3, 2026

Control of Cell Geometry through Infrared Laser Assisted Micropatterning
Published on: July 10, 2021
Development of a three-wave far-infrared laser interferometry and polarimetry diagnostic system for the C-2W
B H Deng1, M Rouillard1, P Feng1
1TAE Technologies, Inc., Foothill Ranch, California 92610, USA.
Abstract:
Great advancements in modern field-reversed configuration (FRC) experiments motivated the development of a 14-chord three-wave far infrared (FIR) laser interferometry and polarimetry diagnostic system, which can provide simultaneous high temporal resolution measurements of density and Faraday rotation profiles with high accuracy. The unique challenges facing FIR diagnostics in high beta FRC plasmas are the extremely small (<0.5°) Faraday rotation angles, and severe laser beam refraction effects due to high density gradient and choice of long wavelength. The diagnostic system design and development are described with methods to overcome the challenges, and initial experimental data are also presented.
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