most citedInstrument-limited pixel-level SNR bounds from optical throughput

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quant-ph2025

From Étendue to the Lowest Fundamental SNR: Pixel Étendue (Optogeometric Factor) Interpreted as Mode Count

Jan Sova, Marie Kolaříková

The optogeometric factor, recently introduced as a pixel level form of étendue, quantifies the spatial angular throughput of a detector element. In this work its interpretation is…