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Related Experiment Video

Updated: May 29, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

Plasmonic crystal defect nanolaser.

Amit M Lakhani¹, Myung-ki Kim, Erwin K Lau

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

|September 22, 2011

Summary

This summary is machine-generated.

Researchers created a novel nanolaser using a plasmonic crystal defect. This breakthrough enables coherent plasmons in deep-subwavelength volumes for advanced nanophotonics.

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Last Updated: May 29, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

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Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Area of Science:

Photonics
Nanotechnology
Materials Science

Background:

Surface plasmons offer unique capabilities for probing nanoscale dimensions.
Coherent plasmon generation is crucial for advanced optical applications.
Plasmonic crystals provide a platform for controlling surface plasmon propagation.

Purpose of the Study:

To demonstrate a nanolaser utilizing a plasmonic bandgap defect state.
To achieve coherent plasmon generation in deep-subwavelength volumes.
To explore the potential of plasmonic crystals in nanophotonics.

Main Methods:

Engineering a one-dimensional semiconductor-based plasmonic crystal with specific stopbands.
Introducing a three-hole defect to confine surface plasmons within the crystal structure.
Utilizing conventional III-V semiconductors for nanolaser fabrication.

Main Results:

Achieved lasing in mode volumes as small as V(eff) = 0.3(λ₀/n)³ at λ₀ = 1342 nm.
Demonstrated mode volumes 10 times smaller than similar modes in photonic crystals.
Successfully confined surface plasmons using a defect in the plasmonic crystal.

Conclusions:

The developed nanolaser design enables coherent plasmons in deep-subwavelength volumes.
Plasmonic crystals are a viable platform for designing efficient nanolasers.
This work advances nanophotonics integration and nanoscale optical probing capabilities.