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Holographic Technique Can Encode Information at Nanoscale

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LAUSANNE, Switzerland, May 6, 2019 — Researchers at École Polytechnique Fédérale de Lausanne (ÉPFL) have developed a method to see how light behaves on the nanoscale, well beyond wavelength limitations. When the method is used with an ultrafast electron microscope, it can encode quantum information in a holographic light pattern trapped in a nanostructure. The new technique is based on an exotic aspect of electron and light interaction. The researchers used freely propagating electrons as their photographic media. They used the quantum nature of the electron-light interaction to separate the...Read full article

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    Published: May 2019
    Glossary
    quantum
    The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...
    electron microscope
    A device utilizing an electron beam for the observation and recording of submicroscopic samples with the aid of photographic emulsions or other short-wavelength sensors. With the electron microscope, the maximum useful magnification is over 300,000.
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    Research & TechnologyeducationEuropeEPFLImagingLight SourcesOpticsholographic techniquequantumquantum computationelectron microscopeoptical holographynanoEuro News

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