Complete Stokes vector analysis with a compact, portable rotating waveplate polarimeter
| Autor: | T. A. Wilkinson, C. J. Flood, Gary Lander, C. E. Maurer, S. Chafin, Edward B. Flagg |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Liquid-crystal display Physics - Instrumentation and Detectors business.industry Optical table FOS: Physical sciences Polarimeter Instrumentation and Detectors (physics.ins-det) Polarization (waves) Waveplate Collimated light law.invention symbols.namesake Optics law symbols Calibration Stokes parameters business Instrumentation Physics - Optics Optics (physics.optics) |
| Zdroj: | The Review of scientific instruments. 92(9) |
| ISSN: | 1089-7623 |
| Popis: | Accurate calibration of polarization dependent optical elements is often necessary in optical experiments. A versatile polarimeter device to measure the polarization state of light is a valuable tool in these experiments. Here we report a rotating waveplate-based polarimeter capable of complete Stokes vector analysis of collimated light. Calibration of the device allows accurate measurements over a range of wavelengths, with a bandwidth of >30 nm in this implementation. A photo-interrupter trigger system supplies the phase information necessary for full determination of the Stokes vector. An Arduino microcontroller performs rapid analysis and displays the results on a liquid crystal display. The polarimeter is compact and can be placed anywhere on an optical table on a single standard post. The components to construct the device are only a fraction of the cost of commercially available devices while the accuracy and precision of the measurements are of the same order of magnitude. 4 pages, 3 figures |
| Databáze: | OpenAIRE |
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