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Related Experiment Video

Updated: Jun 11, 2026

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

Subwavelength metal-optic semiconductor nanopatch lasers.

Kyoungsik Yu1, Amit Lakhani, Ming C Wu

  • 1Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.

Optics Express
|July 1, 2010
PubMed
Summary

We developed ultra-small semiconductor nanopatch lasers with subwavelength dimensions. These lasers utilize nanoscale metal patches to confine light, enabling applications in data storage and sensing.

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Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism-Coupled Lateral Si p-n Junction.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2025

Area of Science:

  • Optics and Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Miniaturization of lasers is crucial for advanced optical technologies.
  • Existing micro- and nano-lasers face challenges in light confinement and efficiency.

Purpose of the Study:

  • To report on the development of near-infrared semiconductor nanopatch lasers with record-small physical and effective mode volumes.
  • To demonstrate lasing in fundamental optical modes within these ultra-small resonators.

Main Methods:

  • Fabrication of semiconductor nanopatch lasers incorporating nanoscale metal patches.
  • Characterization of optical modes and lasing behavior in the near-infrared spectrum.
  • Utilizing metallodielectric cavities to enhance light confinement.

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Last Updated: Jun 11, 2026

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

A Method to Fabricate Disconnected Silver Nanostructures in 3D
05:45

A Method to Fabricate Disconnected Silver Nanostructures in 3D

Published on: November 27, 2012

Laser-induced Forward Transfer of Ag Nanopaste
08:07

Laser-induced Forward Transfer of Ag Nanopaste

Published on: March 31, 2016

Main Results:

  • Achieved subwavelength-scale physical dimensions (0.019 cubic wavelengths) and effective mode volumes (0.0017 cubic wavelengths).
  • Observed lasing in the two most fundamental optical modes, resembling oscillating electrical and magnetic dipoles.
  • Demonstrated that nanoscale metal patches effectively suppress radiation and create highly confined resonators.

Conclusions:

  • Ultra-small semiconductor nanopatch lasers with metallodielectric cavities are feasible.
  • These lasers offer significant potential for applications in high-density data storage.
  • The technology is promising for advanced biological sensing and on-chip optical communication systems.