Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat Multilevel Diffractive Lens
Optics
2019-08-07 v1 Applied Physics
Abstract
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.
Keywords
Cite
@article{arxiv.1908.01945,
title = {Imaging across the Short-Wave Infra-Red (SWIR) Band via a Flat Multilevel Diffractive Lens},
author = {Monjurul Meem and Sourangsu Banerji and Apratim Majumder and Curt Dvonch and Berardi Sensale-rodriguez and Rajesh Menon},
journal= {arXiv preprint arXiv:1908.01945},
year = {2019}
}