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

Super-resolution Fluorescence Microscopy

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...

You might also read

Related Articles

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

Sort by

Same author

Spatial transcriptome for cell segmentation.

Nature computational science·2026

Same author

Ultra-broadband ultraviolet detection and imaging enabled by copper-halide inside transparent glass.

Nature communications·2026

Same author

Upconversion Nanoparticle-Guided Virtual Deformable Mirror for Computational Adaptive Optics in Scattering Fluorescence Microscopy.

Nano letters·2026

Same author

Correction to "Thiolate DNAzymes on Gold Nanoparticles for Isothermal Amplification and Detection of Mesothelioma-derived Exosomal PD-L1 mRNA".

Analytical chemistry·2026

Same author

Lattice and ligand engineering for hierarchical heterogeneous nanocrystals.

Proceedings of the National Academy of Sciences of the United States of America·2026

Same author

Ba<sub>4</sub>CdGa<sub>2</sub>S<sub>6</sub>F<sub>4</sub>: A Chalcohalide Birefringent Crystal with Large Band Gap Designed by the Cation and Anion Cosubstitution Strategy.

Inorganic chemistry·2026

Search research articles

Related Experiment Video

Updated: May 2, 2026

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Polarized Upconversion of sub-100 nm Single Nanoparticles.

Yangjian Cai^1,2, Yunfei Shang¹, Ming Lu¹

¹Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, New South Wales 2007, Australia.

|August 21, 2024

Summary

Researchers observed polarized upconversion emissions from single nanoparticles below 100 nm. Different nanostructure shapes showed unique polarization, linked to crystallographic orientation and lanthanide ion emission.

Keywords:

Stark splitting directional growth orientation classification sub-100 nm nanoparticle upconversion polarization

More Related Videos

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Triplet Fusion Upconversion Nanocapsule Synthesis

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

Related Experiment Videos

Last Updated: May 2, 2026

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

Triplet Fusion Upconversion Nanocapsule Synthesis

Triplet Fusion Upconversion Nanocapsule Synthesis

Published on: September 7, 2022

Area of Science:

Materials Science
Nanotechnology
Photonics

Background:

Upconversion nanoparticles (UCNPs) are valuable imaging probes due to photostability and tunable emission.
Upconversion polarization in UCNPs is under-explored, with prior studies limited to microstructures.

Purpose of the Study:

To investigate polarized upconversion emissions from single UCNPs at the sub-100 nm scale.
To understand the factors influencing polarization in different UCNP morphologies.

Main Methods:

Synthesis of β-NaYF4 single nanostructures (nanorods, nanodiscs, nanoplates) below 100 nm.
Characterization of upconversion emission polarization degrees.
Correlation of polarization with crystallographic orientation and spectral profiles of Er3+ transitions.

Main Results:

Distinct polarized upconversion emissions were observed from individual nanorods, nanodiscs, and nanoplates.
Polarization degrees varied significantly between morphologies, independent of lanthanide doping concentration.
Crystallographic orientation relative to the light field was identified as the primary factor controlling polarization.

Conclusions:

The study reveals controllable polarization in UCNPs at the nanoscale.
Findings enhance understanding of UCNP optical properties and their dependence on morphology and orientation.
This work opens avenues for polarization-sensitive UCNP applications in imaging and sensing.