no code implementations • 5 Jan 2021 • Linbo Shao, Di Zhu, Marco Colangelo, Dae Hun Lee, Neil Sinclair, Yaowen Hu, Peter T. Rakich, Keji Lai, Karl K. Berggren, Marko Loncar
Acoustic waves at microwave frequencies have been widely used in wireless communication and recently emerged as versatile information carriers in quantum applications.
Applied Physics Quantum Physics
no code implementations • 1 Nov 2020 • Marco Turchetti, Mina R. Bionta, Yujia Yang, Felix Ritzkowsky, Denis Ricardo Candido, Michael Flatté, Karl K. Berggren, Phillip D. Keathley
In this work, we investigate multiphoton and optical-field tunneling emission from metallic surfaces with nanoscale vacuum gaps.
Optics Applied Physics
1 code implementation • 13 Sep 2020 • Mina R. Bionta, Felix Ritzkowsky, Marco Turchetti, Yujia Yang, Dario Cattozzo Mor, William P. Putnam, Franz X. Kärtner, Karl K. Berggren, Phillip D. Keathley
We demonstrated our devices by sampling the electric field of a ~5 fJ, broadband near-infrared ultrafast laser pulse using a ~50 pJ near-infrared driving pulse.
Optics Instrumentation and Detectors
no code implementations • 29 Jul 2020 • Emily Toomey, Ken Segall, Matteo Castellani, Marco Colangelo, Nancy Lynch, Karl K. Berggren
As the limits of traditional von Neumann computing come into view, the brain's ability to communicate vast quantities of information using low-power spikes has become an increasing source of inspiration for alternative architectures.
1 code implementation • 15 Dec 2019 • Yujia Yang, Marco Turchetti, Praful Vasireddy, William P. Putnam, Oliver Karnbach, Alberto Nardi, Franz X. Kärtner, Karl K. Berggren, Phillip D. Keathley
Ultrafast light-matter interactions lead to optical-field-driven photocurrents with an attosecond-level temporal response.
Optics Applied Physics Instrumentation and Detectors
no code implementations • 29 Jun 2019 • Emily Toomey, Ken Segall, Karl K. Berggren
Building on an architecture first proposed for Josephson junctions, we rely on the intrinsic nonlinearity of two coupled nanowires to generate spiking behavior, and use electrothermal circuit simulations to demonstrate that the nanowire neuron reproduces multiple characteristics of biological neurons.
