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  2. Photoionization - Wikipedia

    en.wikipedia.org/wiki/Photoionization

    In the case of molecules, the photoionization cross-section can be estimated by examination of Franck-Condon factors between a ground-state molecule and the target ion. This can be initialized by computing the vibrations of a molecule and associated cation (post ionization) using quantum chemical software e.g. QChem.

  3. Photon - Wikipedia

    en.wikipedia.org/wiki/Photon

    A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) 'light') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force.

  4. Ionization - Wikipedia

    en.wikipedia.org/wiki/Ionization

    The pioneering work began with the observation of a "knee" structure on the Xe 2+ ion signal versus intensity curve by L’Huillier et al. [43] From the experimental point of view, the NS double ionization refers to processes which somehow enhance the rate of production of doubly charged ions by a huge factor at intensities below the saturation ...

  5. Ion - Wikipedia

    en.wikipedia.org/wiki/Ion

    The net charge of an ion is not zero because its total number of electrons is unequal to its total number of protons. A cation is a positively charged ion with fewer electrons than protons [2] (e.g. K + (potassium ion)) while an anion is a negatively charged ion with more electrons than protons. [3] (e.g. Cl − (chloride ion) and OH − ...

  6. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    If the beam of light is not orthogonal (or rather normal) to the boundary, the change in wavelength results in a change in the direction of the beam. This change of direction is known as refraction. The refractive quality of lenses is frequently used to manipulate light in order to change the apparent size of images.

  7. Plasma (physics) - Wikipedia

    en.wikipedia.org/wiki/Plasma_(physics)

    Because of the quasineutrality of plasma, the electron and ion densities are related by = , where is the average ion charge (in units of the elementary charge). Temperature Plasma temperature, commonly measured in kelvin or electronvolts , is a measure of the thermal kinetic energy per particle.

  8. Forensic science reveals how Jesus really looked - AOL

    www.aol.com/news/2015-12-14-forensic-science...

    Earlier this year a picture re-emerged that showed what Jesus might have looked like as a kid. Detectives took the Turin Shroud, believed to show Jesus' image, and created a photo-fit image from ...

  9. Spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Spectroscopy

    Quantum logic spectroscopy is a general technique used in ion traps that enables precision spectroscopy of ions with internal structures that preclude laser cooling, state manipulation, and detection. Quantum logic operations enable a controllable ion to exchange information with a co-trapped ion that has a complex or unknown electronic structure.

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