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Light-Matter Coupling Offers Implications for Quantum Optics

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An international research team led by the University of Minnesota Twin Cities has produced a quantum state that is part light and part matter. The research has implications for the next generation of quantum-based optical and electronic devices, and may also contribute to increasing the efficiency of nanoscale chemical reactions. The researchers achieved ultrastrong coupling between infrared light and matter by trapping light in tiny annular holes in a thin layer of gold. The holes were as small as 2 nm, or 25,000× smaller than the width of a human hair. Annular holes in a thin...Read full article

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    Published: December 2020
    Glossary
    quantum optics
    The area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. First observed by Albert Einstein's photoelectric effect, this particle description of light is the foundation for describing the transfer of energy (i.e. absorption and emission) in light matter interaction.
    infrared
    Infrared (IR) refers to the region of the electromagnetic spectrum with wavelengths longer than those of visible light, but shorter than those of microwaves. The infrared spectrum spans wavelengths roughly between 700 nanometers (nm) and 1 millimeter (mm). It is divided into three main subcategories: Near-infrared (NIR): Wavelengths from approximately 700 nm to 1.4 micrometers (µm). Near-infrared light is often used in telecommunications, as well as in various imaging and sensing...
    Research & Technologyquantum photonicsquantum opticslight-matter couplinglight-matter interactionlight-matter interactionsinfrared lightinfraredIRgold filmUniversity of MinnesotaUniversity of Minnesota-Twin CitiesINMAInstituto de Nanociencia y Materiales de Aragónatomic vibrationsTech Pulse

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