22 citations · 23 across the 4 of their papers we have counts for
4 papers · 1 filter
HD snapshot diffractive spectral imaging and inferencing
Apratim Majumder, Monjurul Meem, Fernando Gonzalez del Cueto +4
We present a novel high-definition (HD) snapshot diffractive spectral imaging system utilizing a diffractive filter array (DFA) to capture a single image that encodes both spatial…
FDTD-based Inverse Design enables f/0.27 flat Microlens Array for Integral Imaging
Tina M. Hayward, Robert Stewart, Rajesh Menon +1
We demonstrate a high-NA (0.88), ultra-low-f-number (f/0.2714), multi-wavelength (480nm, 550nm and 650nm) multilevel diffractive MicroLens Array (MLA) using inverse design. Each mi…
High Forward Thrust Metasurface Beam-Riding Sail
Prateek R. Srivastava, Apratim Majumdar, Rajesh Menon +1
The radiation pressure force and torque on a one-dimensional bi-grating composed of a Si-SiO_2 high contrast binary metagrating is analyzed for the purpose of stable beam riding wh…
Circumventing size-bandwidth limits in imaging with flat lenses
Apratim Majumder, Monjurul Meem, Nicole Brimhall +1
Recent theoretical work suggested upper bounds on the operating bandwidths of flat lenses. Here, we show how these bounds can be circumvented via a multi-level diffractive lens (MD…