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Related Experiment Video

Updated: May 16, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

Active dielectric antenna on chip for spatial light modulation.

Ciyuan Qiu1, Jianbo Chen, Yang Xia

  • 1Department of Electrical and Computer Engineering, Rice University, Houston, TX 77005, USA.

Scientific Reports
|November 16, 2012
PubMed
Summary
This summary is machine-generated.

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Researchers developed a dielectric antenna for silicon photonics to control free-space light. This innovation enables high-Q resonators to interact with light waves, leading to compact spatial light modulators.

Area of Science:

  • Photonics and Optical Engineering
  • Materials Science and Engineering

Background:

  • Integrated photonic resonators commonly use evanescent coupling for waveguide-based systems.
  • Free-space optical applications like imaging and sensing require different light manipulation methods.

Purpose of the Study:

  • To develop an interface device enabling silicon photonics integration for free-space applications.
  • To demonstrate a novel diffractive coupling scheme for high-Q resonators interacting with free-space waves.

Main Methods:

  • Utilized an active dielectric antenna as an interface device.
  • Implemented a perturbation-based diffractive coupling scheme.
  • Employed a silicon-based photonic crystal cavity with a tunable p-i-n junction.

Main Results:

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Published on: January 28, 2019

Related Experiment Videos

Last Updated: May 16, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
08:48

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
10:33

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

  • Demonstrated direct interaction between a high-Q planar resonator and free-space waves.
  • Developed a compact spatial light modulator.
  • Achieved an extinction ratio of 9.5 dB and a modulation speed of 150 MHz.

Conclusions:

  • The dielectric antenna effectively bridges silicon photonics and free-space optics.
  • The novel diffractive coupling scheme enables efficient light manipulation.
  • The demonstrated spatial light modulator shows promise for advanced optical systems.