Full Poincaré polarimetry enabled through physical inference
Posted on 23.09.2022 - 16:43
While polarisation sensing is vital in many areas of research, with applications spanning from microscopy to aerospace, traditional approaches are limited by method-related error amplification, accumulation and pre-processing steps, constraining the performance of single-shot polarimetry. Here, we put forward a new measurement paradigm to circumvent these limitations, based on the use of a universal full Poincaré generator to map all polarisation analyser states into a single vectorially structured light field. All vector components are analysed in a single-shot, extracting the vectorial state through inference from a physical model of the resulting image, providing a single-step sensing procedure. To demonstrate the feasibility of our approach, we use a common GRIN optic as our mapping device and show mean errors of <1% for each vector component. Our work paves the way for next-generation polarimetry, impacting a wide variety of applications that rely on vector measurement.
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He, Chao; Lin, Jianyu; Chang, Jintao; Antonello, Jacopo; Dai, Ben; Wang, Jingyu; et al. (2022): Full Poincaré polarimetry enabled through physical inference. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.6171034.v4
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