ArticleNature communications2026
Reconfigurable single-shot spectroscopy reaching 86 femtometers resolution.
Article in Nature communications, 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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Authors and funding
9 authors.
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Abstract
Single-shot spectroscopy enables the capture of an entire transient event within a single measurement, providing critical insights into rapid and non-repetitive processes across diverse fields such as biomedical diagnostics, environmental monitoring, material stress analysis, advanced manufacturing, and telecommunication network fluctuation detection. Despite its promise, current single-shot spectroscopic systems are fundamentally constrained by an inherent incompatibility between spectral bandwidth, spectral resolution, and acquisition speed, limiting their versatility and broader adoption. Here, we introduce a reconfigurable single-shot spectroscopy method that offers full programmability over spectral bandwidth, resolution, and acquisition speed, enabling programmable navigation of the trade-off. By selecting optimal configurations, our approach compensates for the traditional limitations in spectral resolution, achieving a record-breaking resolution of 86 femtometers in the 1.5 μm band-comparable to state-of-the-art Michelson-based Fourier transform spectrometers. Leveraging this technique, we successfully capture rapid dynamic spectral fluctuations of phase-shift fiber Bragg gratings induced by both continuous (9 kHz) and sudden (0.1 ms) vibrations. This innovation broadens the application landscape and paves the way for the commercialization of single-shot spectroscopy.
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Registered trials
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