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Related Experiment Video

Updated: May 11, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Large-scale nanophotonic phased array.

Jie Sun1, Erman Timurdogan, Ami Yaacobi

  • 1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Nature
|January 11, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers demonstrate a large-scale, 4,096-element two-dimensional nanophotonic phased array (NPA) on a silicon chip. This compact and cost-effective NPA enables arbitrary radiation pattern generation for advanced applications.

Area of Science:

  • Photonics and Nanotechnology
  • Electromagnetic Engineering
  • Integrated Optics

Background:

  • Radiofrequency phased arrays are established technologies but are costly and cumbersome for large-scale deployment.
  • Optical phased arrays offer advantages for large-scale integration due to shorter wavelengths, but face fabrication challenges.
  • Previous optical phased array demonstrations were limited to 1D or small 2D configurations.

Purpose of the Study:

  • To demonstrate a large-scale, 2D nanophotonic phased array (NPA) capable of generating sophisticated radiation patterns.
  • To showcase the potential of chip-scale nanophotonics for advanced phased array applications.
  • To enable arbitrary radiation pattern generation beyond conventional beam steering.

Main Methods:

  • Fabrication of a 64x64 (4,096) optical nanoantenna array on a silicon chip using complementary metal-oxide-semiconductor (CMOS) technology.

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Trapping of Micro Particles in Nanoplasmonic Optical Lattice
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Trapping of Micro Particles in Nanoplasmonic Optical Lattice

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Related Experiment Videos

Last Updated: May 11, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
07:20

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

  • Precise balancing of power and alignment of phase across all nanoantennas.
  • Demonstration of dynamic beam steering and shaping using an 8x8 sub-array for active phase tunability.

    • Main Results:

    • Successful implementation of a large-scale 2D NPA with 4,096 densely integrated nanoantennas.
    • Generation of a designed, sophisticated radiation pattern in the far field.
    • Demonstrated active phase tunability for dynamic beam control.

    Conclusions:

    • Robust design and advanced CMOS technology enable large-scale NPAs on compact, inexpensive nanophotonic chips.
    • NPAs extend phased array functionalities beyond traditional beam focusing and steering.
    • This technology opens possibilities for large-scale deployment in communications, Lidar, holography, and biomedical sciences.