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The Open Polarimeter: A High-Resolution Instrument Made from Inexpensive Optomechanical Parts

preprint
submitted on 20.10.2020, 12:46 and posted on 23.10.2020, 15:04 by Andrew Harvie, John de Mello
The Open Polarimeter (“Opol”) is a phase-based, high-resolution laser polarimeter formed from a small number of inexpensive optomechanical parts. The complete instrument can be assembled from scratch in two days for less than US$250, using only a 3D-printer and a benchtop milling machine. However despite its low cost Opol achieves a high accuracy of a few millidegrees, comparable to far costlier commercial instruments. It is released here as open hardware, with technical diagrams, a full parts list, and source-code for its firmware included as Supporting Information. Beyond polarimetry, Opol’s easy-to-build and versatile optical mounting system is likely to prove useful for a wide variety of optical systems.

History

Email Address of Submitting Author

john.demello@ntnu.no

Institution

Norwegian University of Science and Technology (NTNU)

Country

Norway

ORCID For Submitting Author

0000-0002-1704-2392

Declaration of Conflict of Interest

No conflict of interest

Version Notes

Opol version 1.0

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