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Updated: May 17, 2026
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Design of the polarization multi-pass Thomson scattering system
R Yasuhara1, M Yoshikawa, M Morimoto
1National Institute for Fusion Science, Toki, Gifu, Japan. yasuhara@nifs.ac.jp
The Review of Scientific Instruments
|November 7, 2012
Summary
A new multi-pass Thomson scattering system enhances electron temperature measurements using polarization control. This novel configuration doubles the scattering signal, improving accuracy and time resolution in plasma diagnostics.
Area of Science:
- Plasma Physics
- Optical Diagnostics
Background:
- Accurate electron temperature measurements are crucial for understanding plasma behavior.
- Traditional Thomson scattering systems face limitations in signal strength and temporal resolution.
Purpose of the Study:
- To introduce and validate a novel multi-pass Thomson scattering configuration.
- To enhance the time resolution and accuracy of electron temperature measurements.
- To overcome limitations of single-pass Thomson scattering.
Main Methods:
- Development of a multi-pass Thomson scattering system with polarization control.
- Implementation of a perfect coaxial multi-passing technique.
- Experimental validation on the GAMMA 10 plasma system.
Main Results:
- The novel configuration achieved perfect coaxial multi-passing.
- The integrated scattering signal of the double-pass system was approximately double that of a single-pass system.
- Experimental results validated the system's design and performance.
Conclusions:
- The proposed multi-pass Thomson scattering configuration significantly improves signal collection.
- This advancement offers enhanced accuracy and time resolution for electron temperature diagnostics.
- The system demonstrates feasibility for advanced plasma research.
