A high spatial resolution Stokes polarimeter for motional Stark effect imaging

被引：7
|
作者：
Thorman, Alex [1 ]
Michael, Clive [1 ]
Howard, John [1 ]
机构：
[1] Australian Natl Univ, Plasma Res Lab, Res Sch Phys & Engn, Canberra, ACT 0200, Australia
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 06期
关键词：
PLASMA;
D O I：
10.1063/1.4811738
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We describe an enhanced temporally switched interfero-polarimeter that has been successfully deployed for high spatial resolution motional Stark effect imaging on the KSTAR superconducting tokamak. The system utilizes dual switching ferroelectric liquid crystal waveplates to image the full Stokes vector of elliptically polarized and Doppler-shifted Stark-Zeeman Balmer-alpha emission from high energy neutral beams injected into the magnetized plasma. We describe the optical system and compare its performance against a Mueller matrix model that takes account of non-ideal performance of the switching ferro-electric liquid crystal waveplates and other polarizing components. (C) 2013 AIP Publishing LLC.
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页数：6
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