Related Experiment Video

Updated: Jul 29, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

8.8K

Terahertz polarization and chirality modulation induced by asymmetry inversion combining chiral metasurface and

Xinhao Jiang, Yunyun Ji, Fei Fan

    Optics Letters
    |May 24, 2023
    PubMed

    More Related Videos

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces09:33

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

    Published on: June 7, 2019

    6.3K
    An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation10:33

    An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

    Published on: February 27, 2019

    8.5K

    Related Concept Videos

    Chirality02:25

    Chirality

    Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
    Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
    24.4K
    Chirality in Nature02:30

    Chirality in Nature

    Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
    13.5K
    Chirality at Nitrogen, Phosphorus, and Sulfur02:30

    Chirality at Nitrogen, Phosphorus, and Sulfur

    Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
    A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
    5.8K
    Molecules with Multiple Chiral Centers02:25

    Molecules with Multiple Chiral Centers

    Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
    11.9K
    Stereoisomerism of Cyclic Compounds02:33

    Stereoisomerism of Cyclic Compounds

    In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
    9.0K
    ¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons00:58

    ¹H NMR Chemical Shift Equivalence: Enantiotopic and Diastereotopic Protons

    Replacing each alpha-hydrogen in chloroethane by bromine (or a different functional group) yields a pair of enantiomers. Such protons are called prochiral or enantiotopic and are related by a mirror plane. Enantiotopic protons are chemically equivalent in an achiral environment. Because most proton NMR spectra are recorded using achiral solvents, enantiotopic hydrogens yield a single signal.
    In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...
    1.8K