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

X-ray Crystallography02:18

X-ray Crystallography

26.5K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.5K
The de Broglie Wavelength02:32

The de Broglie Wavelength

34.1K
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...
34.1K
Determination of Crystal Structures01:29

Determination of Crystal Structures

20
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
20

You might also read

Related Articles

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

Sort by
Same author

The characteristic function method in surface diffusion.

Physical chemistry chemical physics : PCCP·2026
Same author

Improved Semiclassical Quantization of Bound States.

The journal of physical chemistry letters·2026
Same author

The effect of an optical cavity on diabatic tunneling in an ensemble of symmetric double-well systems.

The Journal of chemical physics·2025
Same author

Semiclassical second order vibrational perturbation theory for hopping rates of H and D atoms on Pt(111) and H on Ru(0001).

Physical chemistry chemical physics : PCCP·2025
Same author

Incoherent tunneling surface diffusion.

Physical chemistry chemical physics : PCCP·2025
Same author

Theory of Nonadiabatic Tunneling Splitting.

The journal of physical chemistry letters·2025

Related Experiment Video

Updated: Mar 7, 2026

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.8K

Scattering of He Atoms from a Microstructured Grating: Quantum Reflection Probabilities and Diffraction Patterns.

Salvador Miret-Artés1, Eli Pollak2

  • 1Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas , Serrano 123, 28006 Madrid, Spain.

The Journal of Physical Chemistry Letters
|February 12, 2017
PubMed
Summary
This summary is machine-generated.

Quantum reflection of helium atoms off a microstructured grating was theoretically confirmed. This quantum phenomenon results from a coherent interaction across the entire potential, not just the long-range part.

More Related Videos

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.0K
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

9.6K

Related Experiment Videos

Last Updated: Mar 7, 2026

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels
11:34

Controlled Synthesis and Fluorescence Tracking of Highly Uniform PolyN-isopropylacrylamide Microgels

Published on: September 8, 2016

10.8K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.0K
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

9.6K

Area of Science:

  • Atomic and Molecular Physics
  • Quantum Mechanics
  • Surface Science

Background:

  • Quantum reflection is a phenomenon where particles are reflected by a potential barrier due to quantum mechanical effects.
  • Previous experiments by Zhao et al. measured quantum reflection of He atoms off a microstructured grating.

Purpose of the Study:

  • To theoretically analyze and confirm the experimental measurements of quantum reflection for He atoms scattering off a microstructured grating.
  • To elucidate the nature of the quantum reflection phenomenon and its dependence on the interaction potential.

Main Methods:

  • Employed the close-coupling formalism for theoretical calculations.
  • Utilized a complex absorbing potential to describe scattering processes.
  • Modeled the long-range interaction using the Casimir-van der Waals potential.

Main Results:

  • Obtained theoretical probabilities and diffraction patterns in good agreement with experimental data.
  • Confirmed that quantum reflection can be observed in both the elastic peak and quantum reflected diffraction patterns.
  • Demonstrated that quantum reflection is a coherent process involving all potential regions.

Conclusions:

  • The study provides theoretical validation for the experimental observation of quantum reflection.
  • Quantum reflection is a nonlocal property arising from the coherent interaction across the entire potential.
  • The phenomenon is not solely attributable to the long-range 'badlands' region of the interaction potential.