Silicon photonics

Silicon photonics is the study of the optical properties of the group-IV semiconductor and the design and fabrication of devices for generating, manipulating and detecting light. Silicon is prevalent in photodetectors, solar cells in particular. However, its indirect band structure means that it is not a natural creator of light.

Latest Research and Reviews

News and Comment

  • News & Views |

    Ferroelectric domain switching controlled by electrical pulses provides a controllable means to tune the refractive index of BaTiO3 thin films. Now, a device based on this material is presented that is capable of implementing low-power, high-speed and CMOS-compatible programmable phase shifters in silicon photonic chips.

    • José Capmany
    •  & Daniel Pérez-López
    Nature Photonics 16, 479-480
  • News & Views |

    Light travels through disordered media on a random path that is hard to control. A comprehensive study has now shown that optical energy can be deposited at a desired depth in a disordered waveguide by injecting a light field with a particular shape.

    • Oluwafemi S. Ojambati
    Nature Physics 18, 227-228
  • News & Views |

    The introduction of piezo-optomechanical phase shifters into silicon optical chips enables the realization of complex, controllable optical processing circuits with negligible static power dissipation, high-speed configuration and compatibility with wafer-scale fabrication.

    • David A. B. Miller
    Nature Photonics 16, 10-11
  • News & Views |

    The demonstration of a germanium-based photodiode with a 3 dB bandwidth of 265 GHz and compatibility with silicon photonics and CMOS fabrication offers a cost-effective route to faster channel data rates for optical communications.

    • Léopold Virot
    Nature Photonics 15, 868-869
  • News & Views |

    Optical acoustic sensors have gained interest for use in photoacoustic imaging systems, but can they dethrone conventional piezoelectric sensors altogether?

    • David C. Garrett
    •  & Lihong V. Wang
    Nature Photonics 15, 324-326