Microwave photonics

Definition

Microwave photonics is the practical application of electromagnetic waves with a wavelength between one millimetre and one meter. Microwaves are important for communications, and systems for detecting microwaves are crucial for astronomy. The term also includes high-frequency electronic systems.

Latest Research and Reviews

  • Research | | open

    The phenomenon of wave mixing is expected to show peculiar features when scaled down to the quantum level. Here, the authors show how coherent electromagnetic waves propagating in a 1D transmission line with an embedded two-level artificial atom are mapped into a quantised spectrum of narrow peaks.

    • A. Yu. Dmitriev
    • , R. Shaikhaidarov
    • , V. N. Antonov
    • , T. Hönigl-Decrinis
    •  & O. V. Astafiev
  • Research | | open

    State-of-the-art methods for sensing weak AC fields are only efficient in the low frequency domain. Here, Stark et al. demonstrate a sensing scheme that is capable of probing high frequencies through continuous dynamical coupling by applying it to a nitrogen-vacancy centre in diamond.

    • Alexander Stark
    • , Nati Aharon
    • , Thomas Unden
    • , Daniel Louzon
    • , Alexander Huck
    • , Alex Retzker
    • , Ulrik L. Andersen
    •  & Fedor Jelezko
  • Research | | open

    Dynamical decoupling protocols can enhance the sensitivity of quantum sensors but this is limited to signal frequencies below a few MHz. Here, Joas et al. use the Mollow triplet splitting in a nitrogen-vacancy centre to overcome this limitation, enabling sensitive detection of signals in the GHz range.

    • T. Joas
    • , A. M. Waeber
    • , G. Braunbeck
    •  & F. Reinhard
  • Research | | open

    Nonreciprocal optical elements often require magnetic materials in order to break time-reversal symmetry. Here, Barzanjeh et al. demonstrate a magnetic-free on-chip microwave circulator that utilizes the interference from six electro-mechanical signal paths.

    • S. Barzanjeh
    • , M. Wulf
    • , M. Peruzzo
    • , M. Kalaee
    • , P. B. Dieterle
    • , O. Painter
    •  & J. M. Fink
  • Research | | open

    Optical non-reciprocity achieved through refractive index modulation can have its challenges and limitations. Here, Dinc et al. introduce the concept of non-reciprocity based on synchronized spatio-temporal modulation of conductivity to achieve different types of non-reciprocal functionality.

    • Tolga Dinc
    • , Mykhailo Tymchenko
    • , Aravind Nagulu
    • , Dimitrios Sounas
    • , Andrea Alu
    •  & Harish Krishnaswamy
  • Research | | open

    Integrated optical circuits today are typically designed for a few special functionalities and require complex design and development procedures. Here, the authors demonstrate a reconfigurable but simple silicon waveguide mesh with different functionalities.

    • Daniel Pérez
    • , Ivana Gasulla
    • , Lee Crudgington
    • , David J. Thomson
    • , Ali Z. Khokhar
    • , Ke Li
    • , Wei Cao
    • , Goran Z. Mashanovich
    •  & José Capmany

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