activity
20172022
most citedBroadband lightweight flat lenses for longwave-infrared imaging

121 citations · 576 across the 29 of their papers we have counts for

collaborators
Showing 2020Show all

12 papers · 1 filter

physics.optics2020★ 1 cited

Machine Learning enables Ultra-Compact Integrated Photonics through Silicon-Nanopattern Digital Metamaterials

Sourangsu Banerji, Apratim Majumder, Alex Hamrick +2

In this work, we demonstrate three ultra-compact integrated-photonics devices, which are designed via a machine-learning algorithm coupled with finite-difference time-domain (FDTD)…

eess.IV2020★ 5 cited

A needle-based deep-neural-network camera

Ruipeng Guo, Soren Nelson, Rajesh Menon

We experimentally demonstrate a camera whose primary optic is a cannula (diameter=0.22mm and length=12.5mm) that acts a lightpipe transporting light intensity from an object plane…

eess.IV2020

Classification of optics-free images with deep neural networks

Soren Nelson, Rajesh Menon

The thinnest possible camera is achieved by removing all optics, leaving only the image sensor. We train deep neural networks to perform multi-class detection and binary classifica…

physics.optics2020★ 15 cited

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…

physics.optics2020

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…

eess.IV2020★ 5 cited

3D Computational Cannula Fluorescence Microscopy enabled by Artificial Neural Networks

Ruipeng Guo, Zhimeng Pan, Andrew Taibi +2

Computational Cannula Microscopy (CCM) is a high-resolution widefield fluorescence imaging approach deep inside tissue, which is minimally invasive. Rather than using conventional…