41 citations · 64 across the 4 of their papers we have counts for
14 papers
Monolithic all-Silicon Flat lens for broadband LWIR Imaging
Orrin Kigner, Monjurul Meem, Brian Baker +4
We designed, fabricated and characterized a flat multi-level diffractive lens (MDL) comprised of only silicon with diameter = 15.2mm, focal length of 19mm, and operating over the l…
Super-resolution imaging with an achromatic multi-level diffractive microlens array
Sourangsu Banerji, Monjurul Meem, Apratim Majumder +2
Compound eyes found in insects provide intriguing sources of biological inspiration for miniaturized imaging systems. Inspired by such insect eye structures, we demonstrate an ultr…
Free-form broadband flat lenses for visible imaging
Monjurul Meem, Apratim Majumder, Rajesh Menon
In the absence of separate apertures, the size and focal length of a lens determines both its resolution and light-collection ability defined by numerical-aperture (NA) and f/#, re…
Inverse-designed flat lens for imaging in the visible & near-infrared with diameter > 3mm and NA=0.3
Monjurul Meem, Sourangsu Banerji, Apratim Majumder +4
It is generally thought that correcting chromatic aberrations in imaging requires multiple surfaces. Here, we show that by allowing the phase in the image plane of a flat lens to b…
Large-area, high-NA Multi-level Diffractive Lens via inverse design
Monjurul Meem, Sourangsu Banerji, Christian Pies +3
Flat lenses enable thinner, lighter, and simpler imaging systems. However, large-area and high-NA flat lenses have been elusive due to computational and fabrication challenges. Her…
Learning Wavefront Coding for Extended Depth of Field Imaging
Ugur Akpinar, Erdem Sahin, Monjurul Meem +2
Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challengin…