Nature‐Inspired Perovskite‐Based Spectral Polarimetric Camera

Nature‐inspired research can leverage millions of years of evolutionary adaptation to pioneer cutting‐edge technological solutions. The sophisticated visual system of the mantis shrimp, for example, has motivated the development of simultaneous spectral and polarimetric imaging (SPI) systems. While conventional silicon‐based CMOS platforms face limitations due to the material bandgap and rely on complex optical assemblies, perovskite‐based detectors offer a compelling alternative. Their tunable broadband spectral absorption and solution processability facilitate highly integrated device architectures. Herein, we present an ultra‐compact SPI camera realized using multispectral perovskite photodetector array. Engineering of perovskite composition and a stacked filter strategy are used to tailor and sharpen detectors’ spectral responses across the visible range. A cost‐effective digital mirror device implementing structured light patterns, coupled with a computational imaging algorithm, allows for SPI with only a single super‐pixel, circumventing challenges in large area production of identical perovskite pixels. SPI with 17 spectral and 4 polarization channels, a high spatial resolution of 256 × 256 pixels, and conduct accurate spectral measurements with significant anti‐glare capabilities is demonstrated. This low‐cost, flexible platform shows promise for a wide range of applications, from scientific research and industrial quality control to enhanced surveillance and navigation systems in visually challenging environments.