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

Phase Transitions

Phase Transitions

Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...

You might also read

Related Articles

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

Sort by

Same author

Probing Moiré Excitons in MoSe<sub>2</sub>/WSe<sub>2</sub> Heterobilayers by Combined Micro-photoluminescence and Lateral Force Microscopy.

Nano letters·2026

Same author

The relationship between the pore architecture of MFI zeolites and isoamylene oligomerization.

Physical chemistry chemical physics : PCCP·2026

Same author

Landau-Zener Transition Enhanced Quantum Sensing in Spin Defects of Hexagonal Boron Nitride.

ACS nano·2026

Same author

Metasurface-enabled astronomical polarimetry.

Science advances·2026

Same author

Light-Driven Topological Relaxation and Dynamic Scaling in Photoresponsive Polymer Films.

ACS photonics·2026

Same author

Whole-genome resequencing revealed genetic diversity and the haplotype containing MC1R associated with black coat color in Liangshan sheep.

BMC genomics·2026

Search research articles

Related Experiment Video

Updated: Jan 6, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Polariton nanophotonics using phase-change materials.

Kundan Chaudhary¹, Michele Tamagnone², Xinghui Yin³

¹Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.

Nature Communications

|October 5, 2019

Summary

Researchers created nanoscale optical devices using phonon polaritons in hexagonal boron nitride and a phase change material. This breakthrough enables rewritable waveguides and optical elements for advanced optoelectronics and biosensors.

More Related Videos

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

Related Experiment Videos

Last Updated: Jan 6, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

Area of Science:

Nanophotonics and Metamaterials
Mid-infrared Optics
Solid-State Physics

Background:

Polaritons, arising from light-matter coupling, offer enhanced nanoscale light-matter interactions.
Controlling polariton propagation at the nanoscale is crucial for developing practical optical devices.
Existing optical techniques are limited for nanoscale polariton manipulation.

Purpose of the Study:

To experimentally demonstrate polariton refractive and meta-optics in the mid-infrared spectrum.
To utilize low-loss phonon polaritons in hexagonal boron nitride and a phase change material.
To enable precise control over polariton wavefronts for sub-wavelength focusing.

Main Methods:

Exploited phonon polaritons in isotopically pure hexagonal boron nitride.
Integrated hexagonal boron nitride with the low-loss phase change material Ge₃Sb₂Te₆.
Fabricated rewritable waveguides, lenses, prisms, and metalenses for polariton manipulation.

Main Results:

Achieved experimental realization of polariton refractive and meta-optics in the mid-infrared.
Demonstrated rewritable waveguides and optical elements for polariton wavefront engineering.
Showcased sub-wavelength focusing capabilities using engineered polariton structures.

Conclusions:

The developed method allows for nanoscale control of polaritons, enabling novel optical functionalities.
This approach paves the way for programmable, miniaturized integrated optoelectronic devices.
Potential applications include on-demand biosensors leveraging high-quality phonon resonators.