This innovation achieves 1-pm spectral resolution and a compact design, highlighting significant advancements in optical measurements.
An ultrahigh-resolution computational spectropolarimeter is demonstrated using leaky mode speckles generated by a tapered coreless fiber, achieving a 1-pm spectral resolution, a 100-nm operating bandwidth and a polarization measurement error of 6 . 9 × 10 − 6 with a compact volume.
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Zhou et al. (2025) studied this question.
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