ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high-precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual-focus metalens capable of simultaneous multidimensional sensing. By multiplexing two distinct focal lengths into a single metasurface, the system enables the parallel acquisition of spectral and spatial information. For thermal sensing, we implement a dual-band (9.6 and 10.6 µm) ratiometric method that effectively mitigates target emissivity uncertainty under the gray-body assumption. This approach yields a mean absolute temperature error of 13.58°C (∼3% relative error) and exhibits exceptional linearity (R
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