Abstract
We report on Mid-infrared (MIR) OCT at 4 µm based on collinear sum-frequency upconversion and promote the A-scan scan rate to 3 kHz. We demonstrate the increased imaging speed for two spectral realizations, one providing an axial resolution of 8.6 µm, and one providing a record axial resolution of 5.8 µm. Image performance is evaluated by sub-surface micro-mapping of a plastic glove and real-time monitoring of CO2 in parallel with OCT imaging.
Original language | English |
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Journal | Optics Letters |
Volume | 46 |
Issue number | 18 |
Pages (from-to) | 4558-4561 |
ISSN | 0146-9592 |
DOIs | |
Publication status | Published - 2021 |