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

Phase Transitions02:31

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 occupy...
Phase Transitions01:21

Phase Transitions

A phase transition is the process in which a substance changes from one state of matter to another, like from a solid to a liquid, liquid to gas, or vice versa, at a specific temperature and under given pressure conditions. This change is spontaneous and is affected by alterations in temperature and pressure. These parameters impact the strength of the forces between molecules (intermolecular forces) in the substance.During a phase transition, both the initial and final phases of the substance...
Phase Diagram01:19

Phase Diagram

The phase of a given substance depends on the pressure and temperature. Thus, plots of pressure versus temperature showing the phase in each region provide considerable insights into the thermal properties of substances. Such plots are known as phase diagrams. For instance, in the phase diagram for water (Figure 1), the solid curve boundaries between the phases indicate phase transitions (i.e., temperatures and pressures at which the phases coexist).
Phase Diagram01:24

Phase Diagram

A phase diagram is a graphical representation of the physical states of a substance under different conditions of temperature and pressure. It shows the boundaries between solid, liquid, and gas phases and the conditions at which these phases coexist in equilibrium. An area in a phase diagram represents a single phase, whereas lines or phase boundaries represent the equilibrium between two phases.In the phase diagram of water, the boundary line between the solid and liquid states illustrates...
Phase Transitions: Melting and Freezing02:39

Phase Transitions: Melting and Freezing

Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
Phase Transitions: Vaporization and Condensation02:39

Phase Transitions: Vaporization and Condensation

The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...

You might also read

Related Articles

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

Sort by
Same author

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled-Resonator-Induced Transparency.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Progressive carrier-envelope phase control of THz pulses via near-field reflection in photoconductive antennas.

Optics express·2026
Same author

Resource-state quantum RAM for fast and error-correctable queries.

Nature communications·2026
Same author

Reconfigurable second-harmonic generation via plasmonic nanoslits counteracting strain-induced suppression in monolayer MoS<sub>2</sub>.

Science advances·2026
Same author

Broadly Tunable Self-Sustained Oscillations in CMOS-Compatible VO<sub>2</sub>/AlN/Si Devices.

ACS applied materials & interfaces·2026
Same author

Photonic Altermagnets: Magnetic Symmetries in Photonic Structures.

Nano letters·2026

Related Experiment Video

Updated: Jun 13, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

Active terahertz nanoantennas based on VO2 phase transition.

Minah Seo1, Jisoo Kyoung, Hyeongryeol Park

  • 1Center for Subwavelength Optics and Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea.

Nano Letters
|May 18, 2010
PubMed
Summary

Researchers developed ultra-broadband metamaterial thin films with a massive dynamic control range. Hybridizing with vanadium dioxide films, these terahertz metamaterials achieve an extinction ratio over 10000 via phase transition.

More Related Videos

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
09:49

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

Published on: May 13, 2020

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Related Experiment Videos

Last Updated: Jun 13, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
09:49

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

Published on: May 13, 2020

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
11:10

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Area of Science:

  • Condensed matter physics
  • Materials science
  • Nanotechnology

Background:

  • Metamaterial properties, including negative refractive index and cloaking, stem from metallic resonator resonance.
  • Previous methods for controlling metamaterial properties using dielectric environments had limited dynamic ranges (<10x) and narrow bandwidths.

Purpose of the Study:

  • To present an ultra-broadband metamaterial thin film with a colossal dynamic control range.
  • To overcome the limitations of existing metamaterial control methods for terahertz applications.

Main Methods:

  • Designed nanoresonator supercell arrays with a decade spectral width in the terahertz region.
  • Integrated these arrays with thin vanadium dioxide (VO2) films.
  • Investigated the effect of VO2 phase transition on metamaterial performance.

Main Results:

  • Achieved an unprecedented extinction ratio exceeding 10000.
  • Demonstrated colossal dynamic control over an ultra-broadband spectrum.
  • Showcased the potential of thin film technology for long-wavelength applications.

Conclusions:

  • The hybridized nanoresonator-VO2 thin film system offers significant advancements in metamaterial dynamic control.
  • This approach enables high-performance terahertz metamaterials with broad operational bandwidths.
  • Realizes the full potential of thin film technology for advanced long-wavelength applications.