no code implementations • 7 Aug 2023 • Kaixuan Wei, Xiao Li, Johannes Froech, PRANEETH CHAKRAVARTHULA, James Whitehead, Ethan Tseng, Arka Majumdar, Felix Heide
The explosive growth of computation and energy cost of artificial intelligence has spurred strong interests in new computing modalities as potential alternatives to conventional electronic processors.
no code implementations • 5 Aug 2023 • PRANEETH CHAKRAVARTHULA, Jipeng Sun, Xiao Li, Chenyang Lei, Gene Chou, Mario Bijelic, Johannes Froesch, Arka Majumdar, Felix Heide
The optical array is embedded on a metasurface that, at 700~nm height, is flat and sits on the sensor cover glass at 2. 5~mm focal distance from the sensor.
no code implementations • 2 May 2023 • Luocheng Huang, Quentin A. A. Tanguy, Johannes E. Froch, Saswata Mukherjee, Karl F. Bohringer, Arka Majumdar
Keeping the latency and power constant between purely digital ANN and hybrid optical-digital ANN, we identified a low-power/ latency regime, where an optical encoder provides higher classification accuracy than a purely digital ANN.
no code implementations • 13 Dec 2022 • Vishwanath Saragadam, Zheyi Han, Vivek Boominathan, Luocheng Huang, Shiyu Tan, Johannes E. Fröch, Karl F. Böhringer, Richard G. Baraniuk, Arka Majumdar, Ashok Veeraraghavan
A computational backend then utilizes a deep image prior to separate the resultant multiplexed image or video into a foveated image consisting of a high-resolution center and a lower-resolution large field of view context.
no code implementations • 28 Apr 2022 • Chris Munley, Wenchao Ma, Johannes E. Fröch, Quentin A. A. Tanguy, Elyas Bayati, Karl F. Böhringer, Zin Lin, Raphaël Pestourie, Steven G. Johnson, Arka Majumdar
Meta-optics have rapidly become a major research field within the optics and photonics community, strongly driven by the seemingly limitless opportunities made possible by controlling optical wavefronts through interaction with arrays of sub-wavelength scatterers.
no code implementations • 26 Feb 2021 • Jinlin Xiang, Shane Colburn, Arka Majumdar, Eli Shlizerman
However, a major challenge in using this spectral approach, as well as in an optical implementation of CNNs, is the inclusion of a nonlinearity between each convolutional layer, without which CNN performance drops dramatically.
no code implementations • 11 Jan 2021 • James E. M. Whitehead, Albert Ryou, Shane Colburn, Maksym Zhelyeznyakov, Arka Majumdar
Many emerging reconfigurable optical systems are limited by routing complexity when producing dynamic, two-dimensional (2D) electric fields.
Optics
1 code implementation • 27 Aug 2019 • Maksym V. Zhelyeznyakov, Alan Zhan, Arka Majumdar
Large-area metasurfaces composed of discrete wavelength-scale scatterers present an extremely large number of degrees of freedom to engineer an optical element.
Optics
no code implementations • 23 Dec 2018 • Shane Colburn, Yi Chu, Eli Shlizerman, Arka Majumdar
The parallelism of optics and the miniaturization of optical components using nanophotonic structures, such as metasurfaces present a compelling alternative to electronic implementations of convolutional neural networks.