Light phase detection with on-chip petahertz electronic networks

Yujia Yang, Marco Turchetti, Praful Vasireddy, William P. Putnam, Oliver Karnbach, Alberto Nardi, Franz X. Kärtner, Karl K. Berggren and Phillip D. Keathley ()
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Yujia Yang: Massachusetts Institute of Technology
Marco Turchetti: Massachusetts Institute of Technology
Praful Vasireddy: Massachusetts Institute of Technology
William P. Putnam: Massachusetts Institute of Technology
Oliver Karnbach: Massachusetts Institute of Technology
Alberto Nardi: Massachusetts Institute of Technology
Franz X. Kärtner: University of Hamburg
Karl K. Berggren: Massachusetts Institute of Technology
Phillip D. Keathley: Massachusetts Institute of Technology

Nature Communications, 2020, vol. 11, issue 1, 1-11

Abstract: Abstract Ultrafast, high-intensity light-matter interactions lead to optical-field-driven photocurrents with an attosecond-level temporal response. These photocurrents can be used to detect the carrier-envelope-phase (CEP) of short optical pulses, and enable optical-frequency, petahertz (PHz) electronics for high-speed information processing. Despite recent reports on optical-field-driven photocurrents in various nanoscale solid-state materials, little has been done in examining the large-scale electronic integration of these devices to improve their functionality and compactness. In this work, we demonstrate enhanced, on-chip CEP detection via optical-field-driven photocurrents in a monolithic array of electrically-connected plasmonic bow-tie nanoantennas that are contained within an area of hundreds of square microns. The technique is scalable and could potentially be used for shot-to-shot CEP tagging applications requiring orders-of-magnitude less pulse energy compared to alternative ionization-based techniques. Our results open avenues for compact time-domain, on-chip CEP detection, and inform the development of integrated circuits for PHz electronics as well as integrated platforms for attosecond and strong-field science.

Date: 2020
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DOI: 10.1038/s41467-020-17250-0

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