A single flat multilevel diffractive lens, only 2.6 micrometers thick, was shown to form images across the 875-1675 nm SWIR band.
Full-color video and still imaging using two flat lenses
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Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat Multilevel Diffractive Lens
A single flat multilevel diffractive lens, only 2.6 micrometers thick, was shown to form images across the 875-1675 nm SWIR band.