Portable real-time polarimeter for partially and fully polarized light

B Mackey; O Sandner; A Saji; A Felipe Ramos; L Hall; S Wilkinson; A McKay; A MacRae

doi:10.1063/5.0231851

Portable real-time polarimeter for partially and fully polarized light

Rev Sci Instrum. 2024 Dec 1;95(12):123101. doi: 10.1063/5.0231851.

Authors

B Mackey¹, O Sandner¹, A Saji², A Felipe Ramos³, L Hall¹, S Wilkinson¹, A McKay¹, A MacRae¹

Affiliations

¹ Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia V8P 5C2, Canada.
² International School of Photonics, Cochin University of Science and Technology, Kochi, India.
³ Universidad del Valle, Santiago de Cali, Valle del Cauca, Colombia.

PMID: 39630045
DOI: 10.1063/5.0231851

Abstract

We present a portable polarimeter capable of real-time visualization of partial and fully polarized light over a broad band of wavelengths. Our system utilizes a Raspberry Pi computer with a low-cost data acquisition "HAT" and an integrated photodetection circuit. Wide bandwidth operation is achieved through digital calibration of an arbitrary retardance waveplate presented herein. All mechanical, electrical, and software components are open source and available on a GitHub repository. This completely integrated approach provides an efficient tool for modern optics research laboratories and is well-suited for educational demonstrations.