Compact THz Schottky Diode Holder
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Description
At our accelerator-based THz experiment, I faced a classic constraint-driven design problem.
Four Schottky diodes for different frequency ranges had to collect THz radiation simultaneously within the narrow emission cone of the accelerator, while the diode bodies and cabling themselves were bulky.
To solve this, I designed custom holders in Fusion 360 and manufactured them by FDM 3D printing.
The holders clamp the four diodes in the tightest possible packing, with no room for screws, so the fixation works purely through a compact clamping mechanism.
This made assembly and disassembly much faster and significantly improved the experimental setup.
The system is mounted on a motorized XYZ stage and a Thorlabs rotation stage, and even with the stiff cabling, the rotation remained fully smooth and practical in operation.
The design also includes a mount for the Thorlabs motor stage, a dedicated diode mount, and spacers that align the horn antenna tips to the same height.
The resulting measurements were presented at IPAC 2026, and the publication is currently under review.
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