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

The de Broglie Wavelength

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...

Standing Waves in a Cavity

Standing Waves in a Cavity

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:

Hybridization of Atomic Orbitals II

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization

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

Observation of Excitonic Instability in a Monolayer Ta<sub>2</sub>NiSe<sub>5</sub> With Strain Disorder.

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

Same author

Imaging the flat bands of magic-angle graphene reshaped by interactions.

Nature·2026

Same author

Revealing Electron-Electron Interactions in Graphene at Room Temperature with a Quantum Twisting Microscope.

Nano letters·2026

Same author

Optical control over topological Chern number in moiré materials.

Nature·2026

Same author

Observation of a superfluid-to-insulator transition of bilayer excitons.

Nature·2026

Search research articles

Related Experiment Video

Updated: Jan 12, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Quantum interference and occupation control in high harmonic generation from monolayer WS₂.

Minjeong Kim^1,2, Taeho Kim^1,2, Anna Galler^3,4

¹Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea.

Nature Communications

|November 6, 2025

Summary

Researchers explored quantum interference in two-dimensional hexagonal materials like WS2. Intense laser fields revealed how electrons across the entire Brillouin zone influence high harmonic generation, advancing quantum technologies.

More Related Videos

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Related Experiment Videos

Last Updated: Jan 12, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Area of Science:

Condensed Matter Physics
Quantum Optics
Materials Science

Background:

Two-dimensional hexagonal materials possess valley degrees of freedom crucial for quantum computing and optoelectronics.
Nonlinear optics utilizes K and K' valleys for ultrafast control of excitons and quantum phenomena.
The behavior of coherent carrier dynamics away from K/K' valleys under intense laser fields remains largely uninvestigated.

Purpose of the Study:

To investigate quantum interferences in high harmonic generation (HHG) from monolayer WS2.
To explore the role of coherent carrier dynamics across the full Brillouin zone under strong laser fields.
To understand how electrons beyond the K/K' valleys contribute to HHG.

Main Methods:

Experimental observation of high harmonic generation in monolayer WS2.
Application of intense laser fields to drive electrons across the Brillouin zone.
Comparison of experimental results with quantum simulations.

Main Results:

Quantum interferences were observed in HHG from monolayer WS2.
In the perturbative regime, valley resonances enhanced HHG via multi-photon excitations.
In the strong-field regime, HHG was controlled by quantum interferences involving electrons across the full Brillouin zone, including regions far from the K/K' valleys.

Conclusions:

Experimental findings align strongly with quantum simulations, validating the interpretation.
This study reveals new methods for utilizing laser-driven quantum interference in 2D hexagonal systems.
Proposes all-optical techniques to probe and control electronic structures throughout the Brillouin zone using strong-field nonlinear optics, benefiting quantum technologies.