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Volume 1 Issue 2, February 2018

Volume 1 Issue 2

Magnet-free isolation with nonlinear resonators

Efficient and magnet-free isolators can be built by coupling two nonlinear resonators through a suitable delay line. The schematic illustration on the cover highlights the combination of a Fano and a Lorentzian nonlinear resonator circuit, where the tailored dispersion of the two resonators enables full transmission when excited from one side, but zero transmission when excited from the opposite side.

See Sounas et al. and News & Views by Krishnaswamy et al.

Image: Erik Zumalt, Andrea Alù, Dimitrios Sounas, University of Texas at Austin. Cover Design: Karen Moore.

Editorial

  • Editorial |

    Advances in flexible electronics and soft robotics are yielding wireless devices and untethered machines of increasing sophistication.

Research Highlights

News & Views

  • News & Views |

    Isolators with superior performance to existing devices can be designed by combining nonlinear resonators.

    • Harish Krishnaswamy
    • Negar Reiskarimian
    • Aravind Nagulu
  • News & Views |

    Giant magnetoresistive devices fabricated on flexible substrates can detect the direction of strain in a material.

    • Jun-Yang Chen
    • Jian-Ping Wang
  • News & Views |

    The stacking of different two-dimensional materials can be used to create memristors with high thermal stability.

    • Quoc An Vu
    • Woo Jong Yu
  • News & Views |

    Neuromorphic computing based on fully memristive neural networks could offer a scalable and lower-cost alternative to existing neural spiking chips based solely on CMOS technology.

    • Bernabe Linares-Barranco

Reviews

  • Review Article |

    This Review Article examines the development of functional untethered soft robotics, evaluating recent advances in soft robotic actuation, sensing, and integration in relation to untethered systems.

    • Steven I. Rich
    • Robert J. Wood
    • Carmel Majidi

Research

Amendments & Corrections

Reverse Engineering

  • Reverse Engineering |

    Electronic devices today are untethered and always connected, and wireless networks have enabled this free flow of information. John O’Sullivan details the developments leading up to the establishment of the wireless network standard 802.11a, which is more commonly known as Wi-Fi.

    • John O’Sullivan

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