Abstract
In this paper, we present recent work to improve the detection limit of the electric fieldinduced second harmonic generation (E-FISH) diagnostic for electric field measurements in electrical discharges. We show that utilizing homodyne detection with sensitive photomultiplier tubes as detectors leads to both an enhancement of the measured signal and a sensitivity to the polarity of the applied electric field while retaining the picosecond temporal resolution. We demonstrate measurements of Laplacian DC electric fields down to 1 V/cm as well as 8 ns time-resolved transient Laplacian electric field measurements down to 0.5-1 V/cm.
| Original language | English (US) |
|---|---|
| Title of host publication | AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025 |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| ISBN (Print) | 9781624107238 |
| DOIs | |
| State | Published - 2025 |
| Event | AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025 - Orlando, United States Duration: Jan 6 2025 → Jan 10 2025 |
Publication series
| Name | AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025 |
|---|
Conference
| Conference | AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025 |
|---|---|
| Country/Territory | United States |
| City | Orlando |
| Period | 1/6/25 → 1/10/25 |
Bibliographical note
Publisher Copyright:© 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
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