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This paper presents the design of a compact 45 V-to-54 kV dc-dc converter for high-energy beam applications with the focus on X-ray generation. We describe key design choices for a high power density including a modular structure, high-frequency switching, planar transformers and Dickson topology. High-voltage insulation and thermal management are also described in detail. The experimental data with a 5 kV single module and a 10-module 54 kV converter indicate that the proposed structure can generate high dc voltage while achieving a several times higher power density compared to commercial high-voltage power supplies.
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Low-cost mid-infrared polarizer based on direct coupling to surface-plasmon polaritons
We report a new type of reflective polarizer based on free-space coupling to surface-plasmon polaritons that has a high extinction ratio and high efficiency at infrared frequencies.
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- Award ID(s):
- 1720415
- PAR ID:
- 10204037
- Date Published:
- Journal Name:
- Conference on Lasers and Electro-Optics
- Page Range / eLocation ID:
- JW2C.9
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1364/CLEO_AT.2020.JW2C.9
