The Menon Lab

Advancing the crossroads of Optics, Nanofabrication, and Computation.



Monolithic all-silicon flat lens for broadband LWIR imaging.


Journal article


Orrin Kigner, Monjurul Meem, B. Baker, Sourangsu Banerji, P. Hon, B. Sensale‐Rodriguez, R. Menon
Optics Letters, 2021

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APA   Click to copy
Kigner, O., Meem, M., Baker, B., Banerji, S., Hon, P., Sensale‐Rodriguez, B., & Menon, R. (2021). Monolithic all-silicon flat lens for broadband LWIR imaging. Optics Letters.


Chicago/Turabian   Click to copy
Kigner, Orrin, Monjurul Meem, B. Baker, Sourangsu Banerji, P. Hon, B. Sensale‐Rodriguez, and R. Menon. “Monolithic All-Silicon Flat Lens for Broadband LWIR Imaging.” Optics Letters (2021).


MLA   Click to copy
Kigner, Orrin, et al. “Monolithic All-Silicon Flat Lens for Broadband LWIR Imaging.” Optics Letters, 2021.


BibTeX   Click to copy

@article{orrin2021a,
  title = {Monolithic all-silicon flat lens for broadband LWIR imaging.},
  year = {2021},
  journal = {Optics Letters},
  author = {Kigner, Orrin and Meem, Monjurul and Baker, B. and Banerji, Sourangsu and Hon, P. and Sensale‐Rodriguez, B. and Menon, R.}
}

Abstract

We designed, fabricated, and characterized a flat multi-level diffractive lens comprised of only silicon with diameter=15.2mm, focal length=19mm, numerical aperture of 0.371, and operating over the long-wave infrared (LWIR) spectrum=8µm to 14 µm. We experimentally demonstrated a field of view of 46°, depth of focus >5mm, and wavelength-averaged Strehl ratio of 0.46. All of these metrics were comparable to those of a conventional refractive lens. The active device thickness is only 8 µm, and its weight (including the silicon substrate) is less than 0.2 g.


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