RT Journal Article T1 Sub-GHz optical resolution mid-infrared hyperspectral imaging with dual-comb A1 Khan, Farid Ullah A1 Moreno Oyervides, Aldo Luis A1 Bonilla Manrique, Óscar Elías A1 Martín Mateos, Pedro AB High-performance hyperspectral imaging is becoming one of the most sought-after tools in the world today by providing a wide range of capabilities and applications. However, traditional systems have significant performance limitations, mainly related to the ability to resolve narrow spectral features and to detection sensitivity. With the aim of addressing these weaknesses, we present here the first hyperspectral dual-comb imaging system capable of providing sub-GHz (<0.033 cm−1) optical resolutions and fast acquisition rates in the mid-infrared region. The system has been experimentally demonstrated by analyzing methane at 2968 cm−1 with optical resolutions of down to 300 MHz (0.01 cm−1) and time resolutions well into the sub-second range. PB Elsevier SN 0143-8166 YR 2023 FD 2023-11-01 LK https://hdl.handle.net/10016/38613 UL https://hdl.handle.net/10016/38613 LA eng NO This research was supported in part by the Ministry of Science and Innovation, State Investigation Agency, through the project PID2020–116439GB-I00. DS e-Archivo RD 1 jul. 2024