Portable Real-Time Polarimeter for Partially and Fully Polarized Light

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" (DAQ 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.

5 pages, 4 figures

References in corpus (4)

• Polarization measurements of hot dust stars and the local interstellar medium
• Polarimetric analysis of stress anisotropy in nanomechanical silicon nitride resonators
• Waveplate retarders based on overhead transparencies
• Compensating fictitious magnetic field gradients in optical microtraps by using elliptically polarized dipole light