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

Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

42.8K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
42.8K
X-ray Crystallography02:18

X-ray Crystallography

24.0K
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...
24.0K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

26.7K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.7K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

34.4K
VSEPR Theory for Determination of Electron Pair Geometries
34.4K
Torsion of Noncircular Members01:16

Torsion of Noncircular Members

158
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
158
Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

379
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
379

You might also read

Related Articles

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

Sort by
Same author

Association Between Thyroid-Stimulating Hormone and Renal Function: a Mendelian Randomization Study.

Kidney & blood pressure research·2018
Same author

[Influence of enteral nutrition initiation timing on curative effect and prognosis of acute respiratory distress syndrome patients with mechanical ventilation].

Zhonghua wei zhong bing ji jiu yi xue·2018
Same author

A novel electrochemical aptamer-antibody sandwich assay for the detection of tau-381 in human serum.

The Analyst·2018
Same author

Instrumental variable analysis in the presence of unmeasured confounding.

Annals of translational medicine·2018
Same author

Tobacco product initiation is correlated with cross-product changes in tobacco harm perception and susceptibility: Longitudinal analysis of the Population Assessment of Tobacco and Health youth cohort.

Preventive medicine·2018
Same author

Curcumin, A Polyphenolic Curcuminoid With Its Protective Effects and Molecular Mechanisms in Diabetes and Diabetic Cardiomyopathy.

Frontiers in pharmacology·2018

Related Experiment Video

Updated: Jul 16, 2025

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.5K

Elliptical-ring-shaped Talbot effect in uniaxial crystals.

Yingyi Liu, Jing Cheng

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |September 14, 2023
    PubMed
    Summary

    Researchers demonstrated an anisotropic elliptical-ring Talbot effect in uniaxial crystals. This optical phenomenon shows self-imaging and ring convergence for specific periodic elliptical light structures.

    Area of Science:

    • Optics
    • Crystallography

    Background:

    • The Talbot effect describes self-imaging of periodic structures under coherent illumination.
    • Anisotropic materials exhibit properties that differ with direction, influencing light propagation.

    Purpose of the Study:

    • To investigate and demonstrate a novel anisotropic elliptical-ring-shaped Talbot effect.
    • To explore self-imaging and fractional Talbot effects with elliptical-ring structures in uniaxial crystals.

    Main Methods:

    • Theoretical derivation of the anisotropic elliptical-ring-shaped Talbot effect.
    • Numerical simulations to validate theoretical predictions.
    • Propagation of a phase-only periodic elliptical-ring structure in a uniaxial crystal.

    Main Results:

    More Related Videos

    Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
    06:57

    Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

    Published on: July 17, 2020

    2.2K
    Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
    09:06

    Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

    Published on: March 24, 2019

    8.1K

    Related Experiment Videos

    Last Updated: Jul 16, 2025

    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
    06:24

    High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

    Published on: October 31, 2019

    6.5K
    Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
    06:57

    Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

    Published on: July 17, 2020

    2.2K
    Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
    09:06

    Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

    Published on: March 24, 2019

    8.1K
    • Observed self-imaging of the elliptical-ring structure at the Talbot distance.
    • Demonstrated convergence of N elliptical rings to a single ring at fractional Talbot distances.
    • Confirmed theoretical predictions through numerical simulations.

    Conclusions:

    • The anisotropic elliptical-ring-shaped Talbot effect is achievable in uniaxial crystals.
    • The effect allows for controlled manipulation of light structures, with potential applications in optical systems.