About 465,000 results
Open links in new tab
  1. Fluorescence - Wikipedia

    Fluorescence has many practical applications, including mineralogy, gemology, medicine, chemical sensors (fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, cosmic-ray …

  2. Fluorescence Definition and Examples - Science Notes and Projects

    Apr 5, 2023 · Fluorescence is a phenomenon where certain materials rapidly (around 10 -8 seconds) emit light when they are exposed to specific types of electromagnetic radiation, typically ultraviolet …

  3. Fluorescence | Emission, Excitation & Photochemistry | Britannica

    Nov 18, 2025 · Fluorescence, emission of electromagnetic radiation, usually visible light, caused by excitation of atoms in a material, which then reemit almost immediately (within about 10−8 seconds).

  4. Fluorescence - Chemistry LibreTexts

    Fluorescence occurs when an atom or molecules relaxes through vibrational relaxation to its ground state after being electrically excited. The specific frequencies of excitation and emission are …

  5. What Is Fluorescence and How Does It Work? - Biology Insights

    Jul 25, 2025 · Fluorescence describes a natural phenomenon where certain substances absorb light and then almost immediately re-emit it as a visible glow. This process involves the transformation of …

  6. Fluorescence Fundamentals - Thermo Fisher Scientific - US

    Fluorescence is the result of a 3-stage process that occurs in certain molecules (e.g., polyaromatic hydrocarbons) called fluorophores.

  7. FLUORESCENCE Definition & Meaning - Merriam-Webster

    The meaning of FLUORESCENCE is luminescence that is caused by the absorption of radiation at one wavelength followed by nearly immediate reradiation usually at a different wavelength and that …

  8. Fluorescence is a member of the ubiquitous luminescence family of processes in which susceptible molecules emit light from electronically excited states created by either a physical (for example, …

  9. Introduction to Fluorescence - Life Science

    The phenomenon of fluorescence was known by the middle of the nineteenth century. British scientist Sir George G. Stokes first made the observation that the mineral fluorspar exhibits fluorescence …

  10. Fluorescence - an overview | ScienceDirect Topics

    Fluorescence analysis can be used to follow separation processes of plant and animal chemical components and tissues in food production because of naturally present fluorescence markers …