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Mid-infrared optical coherence tomography with a stabilized OP-GaP optical parametric oscillator
Optics Letters- received 02/05/2024; accepted 04/25/2024; posted 04/26/2024; Doc. ID 520734
- Abstract: We demonstrate mid-infrared time-domain optical coherence tomography with an orientation-patterned GaP optical parametric oscillator. Instantaneous broadband spectra tunable from 5–11 μm provide reduced scattering for OCT applications including cultural heritage, quality assurance, and security. Volumetric imaging inside a plastic bank card is demonstrated at 5.1 μm that indicates the potential of stable broadband OPO sources to contribute to mid-infrared OCT.