Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat
  Multilevel Diffractive Lens

Meem, Monjurul; Banerji, Sourangsu; Majumder, Apratim; Dvonch, Curt; Sensale-rodriguez, Berardi; Menon, Rajesh

doi:10.48550/arXiv.1908.01945

Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat Multilevel Diffractive Lens

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posted on 2023-11-30, 18:48 authored by Monjurul Meem, Sourangsu Banerji, Apratim Majumder, Curt Dvonch, Berardi Sensale-rodriguez, Rajesh Menon

We designed and fabricated a flat multi-level diffractive lens (MDL) that is achromatic in the SWIR band (875nm to 1675nm). The MDL had a focal length of 25mm, aperture diameter of 8.93mm and thickness of only 2.6um. By pairing the MDL with a SWIR image sensor, we also characterized its imaging performance in terms of the point-spread functions, modulation-transfer functions, and still and video imaging.

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URL - References https://doi.org/10.48550/arXiv.1908.01945

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Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat Multilevel Diffractive Lens

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