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

Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

4.1K
Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
4.1K
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

1.7K
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
1.7K
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

3.0K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
3.0K
Molecular Orbital Theory I02:35

Molecular Orbital Theory I

39.7K
Overview of Molecular Orbital Theory
39.7K

You might also read

Related Articles

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

Sort by
Same author

Ultra-Thin and Highly Insulating Aromatic Monolayers by N-Heterocyclic Carbenes.

Angewandte Chemie (International ed. in English)·2026
Same author

Encoding orbital angular momentum of light in space with optical catastrophes.

Nature communications·2026
Same author

Ultra-dispersive metasurfaces enabled by convergence-phase design using simplified nanopillar arrays.

Nature communications·2026
Same author

Printable meta-assemblies enable synergetic colouration.

Nature·2026
Same author

Stable Synapse-Like Memory Switching in N-Heterocyclic Carbene Monolayers.

Angewandte Chemie (International ed. in English)·2026
Same author

Enhancing Volumetric Optical Chirality through 2D-3D Structural Design Evolution.

Nano letters·2026

Related Experiment Video

Updated: May 1, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.0K

Quantum plasmon resonances controlled by molecular tunnel junctions.

Shu Fen Tan1, Lin Wu, Joel K W Yang

  • 1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.

Science (New York, N.Y.)
|March 29, 2014
PubMed
Summary

Researchers observed quantum plasmon resonances in molecular tunnel junctions, linking quantum optics and nanoelectronics. This control over quantum tunneling in nanoscale gaps opens new avenues for terahertz nanoelectronic devices.

More Related Videos

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

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

Published on: October 13, 2017

8.3K
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

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

Published on: July 21, 2018

6.5K

Related Experiment Videos

Last Updated: May 1, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.0K
Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
12:57

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

Published on: October 13, 2017

8.3K
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

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

Published on: July 21, 2018

6.5K

Area of Science:

  • Quantum optics
  • Terahertz nanoelectronics
  • Plasmonics

Background:

  • Quantum tunneling phenomena are crucial for understanding electron transport at the nanoscale.
  • Plasmonic resonators offer unique light-matter interaction properties at the nanoscale.

Purpose of the Study:

  • To directly observe and control quantum plasmon resonances in molecular tunnel junctions.
  • To investigate the relationship between molecular properties and plasmon resonance frequencies.

Main Methods:

  • Fabrication of molecular tunnel junctions using plasmonic resonators bridged by self-assembled monolayers (SAMs).
  • Utilizing electron energy-loss spectroscopy (EELS) for direct observation of plasmon modes.

Main Results:

  • Direct observation of quantum plasmon resonances at length scales of 0.4 to 1.3 nanometers.
  • Identification of a tunneling charge transfer plasmon mode.
  • Demonstration that plasmon resonance frequency (140–245 THz) is tunable by molecular properties.

Conclusions:

  • Quantum tunneling between plasmonic resonators establishes a link between nonlinear quantum optics and terahertz nanoelectronics.
  • Molecular properties can be used to control quantum plasmon resonances in nanoscale junctions.
  • The observed tunneling charge transfer plasmon is a key phenomenon for future nanoelectronic devices.