Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The de Broglie Wavelength

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Nonadiabatic Dynamics of Photoinduced Hydrogen Dissociation on Plasmonic Au Nanoparticles: How Hot Carrier Excitation Leads to Bond Breaking.

ACS nano·2026

Same author

Infrared Spectroelectrochemical Insights into Rhenium-Based Supramolecular Assemblies for Electron Storage and Transfer.

Inorganic chemistry·2026

Same author

2D Semiconductor Nanosheets Supported on Colloidal Quantum Cubes.

ACS nano·2026

Same author

Nanocrystal-tailored recombination for all-perovskite tandem solar modules.

Nature·2026

Same author

Strong effect of the nonpolar solvent molecular structure on CdSe nanoplatelet stacking.

Nanoscale·2026

Same author

Atomic Alignment in PbS Nanocrystal Superlattices with Compact Inorganic Ligands via Reversible Oriented Attachment of Nanocrystals.

Journal of the American Chemical Society·2026

Same journal

Intrinsic Superconducting Gap in Bilayer KCa<sub>2</sub>Fe<sub>4</sub>As<sub>4</sub>F<sub>2</sub> and Decoupled Monolayer FeAs.

Nano letters·2026

Same journal

Programmable Hydrogen-Assisted Chemical Vapor Deposition Growth and Bipolar Transport in Two-Dimensional MoO<sub>2</sub> Nanoflakes.

Nano letters·2026

Same journal

A Curvature-Modulated Strategy for Single-Atom Catalysts toward Reciprocal Regulation in Li-S Batteries.

Nano letters·2026

Same journal

Vacuum Pyrolysis Engineered CoSb/C Scaffold for Sodium Metal Anodes with Sodiophilic and Superionic Interphase.

Nano letters·2026

Same journal

Hexagonal SiGe Quantum Dots in Nanowires.

Nano letters·2026

Same journal

Monolithic Axial InGaAs Quantum Dot Emitters in GaAs-Based Nanowires via Sb-Mediated Facet Engineering.

Nano letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 29, 2025

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Engineering Directionality in Quantum Dot Shell Lasing Using Plasmonic Lattices.

Jun Guan¹, Laxmi Kishore Sagar², Ran Li³

¹Graduate Program in Applied Physics , Northwestern University , Evanston , Illinois 60208 , United States.

|February 1, 2020

Summary

This summary is machine-generated.

Quantum dot (QD) lasing direction is controlled using plasmonic nanoparticle lattices. By tuning lattice periodicity and QD layer thickness, researchers can direct nanolaser emission angles for advanced optical applications.

Keywords:

band structure engineering colloidal quantum dots laser directionality lattice plasmons surface lattice resonances waveguide

More Related Videos

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Related Experiment Videos

Last Updated: Dec 29, 2025

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

Published on: October 13, 2017

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Area of Science:

Nanophotonics
Plasmonics
Quantum Optics

Background:

Quantum dots (QDs) are semiconductor nanocrystals with tunable optical properties.
Plasmonic nanoparticle (NP) lattices offer unique optical responses through collective electron oscillations.
Nanolasers require efficient optical feedback mechanisms for stimulated emission.

Purpose of the Study:

To engineer the emission direction of quantum dot (QD) nanolasers.
To utilize high-symmetry points in plasmonic nanoparticle lattices for optical feedback.
To tune nanolaser emission angles by modifying plasmonic lattice parameters.

Main Methods:

Fabrication of nanolaser architecture with CdSe-CdS core-shell QDs on 2D Ag NP arrays.
Exploitation of waveguide-surface lattice resonances (W-SLRs) near high-symmetry points (Δ, Γ, M) in the Brillouin zone.
Adjustment of plasmonic lattice periodicity and QD layer thickness to control lasing direction.

Main Results:

Achieved off-normal angle lasing from CdS shells using W-SLRs near the Δ point.
Demonstrated tuning of lasing direction by altering lattice periodicity to match other high-symmetry points (Γ, M).
Introduced higher-order W-SLR modes by increasing QD layer thickness, enabling selection of cavity modes for desired emission angles.

Conclusions:

Plasmonic nanoparticle lattices provide a versatile platform for controlling QD nanolaser emission direction.
High-symmetry points in plasmonic lattices are key to engineering optical feedback for directional lasing.
This approach offers expanded possibilities for designing nanolasers with tailored emission characteristics.