Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mechanism of heat transfer01:19

Mechanism of heat transfer

1.7K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.7K
Conduction, Convection and Radiation: Problem Solving01:20

Conduction, Convection and Radiation: Problem Solving

2.1K
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
2.1K
Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

4.0K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.0K
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

1.4K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.4K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

5.6K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
5.6K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

637
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
637

You might also read

Related Articles

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

Sort by
Same author

Room-temperature second sound in isotopically pure graphite.

Nature communications·2026
Same author

Phosphorus-lithium double-helix nanoribbons.

Science advances·2025
Same author

Promoting Anderson Localization for Low-Frequency Phonons in SiGe Alloyed Nanowires with Long-Range Correlated Disorder.

ACS nano·2025
Same author

Ultrahigh-temperature vacuum prober for electrical and thermal measurements.

The Review of scientific instruments·2025
Same author

Hypersonic acoustic wave control via stealthy hyperuniform phononic nanostructures.

Science advances·2025
Same author

Focusing surface phonon-polaritons for tunable thermal radiation.

Discover nano·2025

Related Experiment Video

Updated: Dec 7, 2025

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
07:32

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Published on: April 10, 2017

9.3K

Enhanced thermal conduction by surface phonon-polaritons.

Y Wu1, J Ordonez-Miranda2, S Gluchko3,4

  • 1Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan. nomura@iis.u-tokyo.ac.jp volz@iis.u-tokyo.ac.jp yunhui@iis.u-tokyo.ac.jp.

Science Advances
|October 1, 2020
PubMed
Summary

Surface phonon-polaritons (SPhPs) enhance heat conduction in thin silicon nitride nanomembranes. This discovery offers a new pathway for heat dissipation in microelectronics and photonics.

More Related Videos

Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

18.9K
Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.0K

Related Experiment Videos

Last Updated: Dec 7, 2025

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
07:32

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Published on: April 10, 2017

9.3K
Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

18.9K
Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.0K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Solid State Physics

Background:

  • Heat dissipation is a critical challenge in miniaturized microelectronic devices.
  • Phonon scattering at surfaces reduces thermal conduction in nanostructures.

Purpose of the Study:

  • To experimentally demonstrate the formation of surface phonon-polaritons (SPhPs) on SiN nanomembranes.
  • To investigate the role of SPhPs in enhancing heat conduction.

Main Methods:

  • Fabrication of silicon nitride (SiN) nanomembranes.
  • In-plane thermal conductivity measurements at varying temperatures (300-800 K).
  • Theoretical analysis of SPhP contribution to thermal transport.

Main Results:

  • Observed doubling of in-plane thermal conductivity in SiN membranes thinner than 50 nm with increasing temperature.
  • Thicker membranes showed a monotonic decrease in thermal conductivity.
  • Thickness and temperature dependencies confirmed SPhP involvement.

Conclusions:

  • Surface phonon-polaritons provide a significant channel for heat conduction in nanostructures.
  • SPhPs can be harnessed to improve thermal management in microelectronics and silicon photonics.