The Menon Lab

Advancing the crossroads of Optics, Nanofabrication, and Computation.



Super-resolution imaging with an achromatic multi-level diffractive microlens array.


Journal article


Sourangsu Banerji, Monjurul Meem, Apratim Majumder, B. Sensale‐Rodriguez, R. Menon
Optics Letters, 2020

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APA   Click to copy
Banerji, S., Meem, M., Majumder, A., Sensale‐Rodriguez, B., & Menon, R. (2020). Super-resolution imaging with an achromatic multi-level diffractive microlens array. Optics Letters.


Chicago/Turabian   Click to copy
Banerji, Sourangsu, Monjurul Meem, Apratim Majumder, B. Sensale‐Rodriguez, and R. Menon. “Super-Resolution Imaging with an Achromatic Multi-Level Diffractive Microlens Array.” Optics Letters (2020).


MLA   Click to copy
Banerji, Sourangsu, et al. “Super-Resolution Imaging with an Achromatic Multi-Level Diffractive Microlens Array.” Optics Letters, 2020.


BibTeX   Click to copy

@article{sourangsu2020a,
  title = {Super-resolution imaging with an achromatic multi-level diffractive microlens array.},
  year = {2020},
  journal = {Optics Letters},
  author = {Banerji, Sourangsu and Meem, Monjurul and Majumder, Apratim and Sensale‐Rodriguez, B. and Menon, R.}
}

Abstract

Compound eyes found in insects provide intriguing sources of biological inspiration for miniaturized imaging systems. Inspired by such insect eye structures, we demonstrate an ultrathin arrayed camera enabled by a flat multi-level diffractive microlens array for super-resolution visible imaging. We experimentally demonstrate that the microlens array can achieve a large fill factor (hexagonal close packing with pitch=120µm), thickness of 2.6 µm, and diffraction-limited (Strehlratio=0.88) achromatic performance in the visible band (450 to 650 nm). We also demonstrate super-resolution imaging with resolution improvement of ∼1.4 times by computationally merging 1600 images in the array.


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