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Related Experiment Video

Updated: Oct 20, 2025

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
07:20

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

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Plasmonic Nanoparticle Lattice Devices for White-Light Lasing.

Jun Guan1,2, Ran Li3, Xitlali G Juarez3

  • 1Graduate Program in Applied Physics, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.

Advanced Materials (Deerfield Beach, Fla.)
|September 12, 2021
PubMed
Summary

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This summary is machine-generated.

Researchers developed a novel plasmonic nanolaser capable of producing white light. This innovative laser uses aluminum nanoparticle lattices and mixed dyes to achieve tunable red, green, and blue lasing for full-color emission.

Area of Science:

  • Plasmonics
  • Nanophotonics
  • Laser Physics

Background:

  • Plasmonic nanolasers offer miniaturization potential for coherent light sources.
  • Achieving white-light emission from a single nanolaser device remains a significant challenge.

Purpose of the Study:

  • To design and demonstrate a plasmonic nanolaser architecture capable of producing white-light emission.
  • To explore the use of aluminum nanoparticle (NP) lattices and mixed dye solutions for tunable lasing.

Main Methods:

  • Fabrication of a laser device using mixed dye solutions as gain material.
  • Integration of the gain medium between two aluminum nanoparticle (NP) square lattices with varying periodicities.
  • Utilizing surface lattice resonance (SLR) modes as nanocavity modes for specific color lasing.
Keywords:
lattice plasmonsmulti-color lasersplasmonic nanoparticle latticessandwiched devicessurface lattice resonanceswhite-light lasers

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Main Results:

  • Simultaneous red and blue lasing achieved from a single NP lattice with a binary dye solution.
  • Tunable red-green and blue-green lasing demonstrated using two Al NP lattices with different periodicities.
  • Realization of red, green, and blue lasing from a single device using a three-dye mixture, resulting in white-light emission.

Conclusions:

  • The developed plasmonic nanolaser architecture successfully produces white-light emission.
  • The device offers a versatile platform for tunable, multi-color lasing by controlling NP lattice design and dye composition.