Optics Letters

Compared to cryogenically cooled conventional detectors, up-conversion detection enables efficient room-temperature short-wave infrared (SWIR) imaging. Although quasi-phase-matching (QPM) in periodically poled crystals offers advantages, the small crystal aperture (typically 1 mm$\times$3 mm) limits resolution. Non-poled crystals enable larger apertures but suffer walk-off aberrations. This work …

Atomic and Molecular Physics, and OpticsOptical and Acousto-Optic TechnologiesPhysical SciencesPhysics and Astronomy
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