Search
Menu
Meadowlark Optics - SEE WHAT

Gas Purging Keeps UV Systems Healthy

Facebook X LinkedIn Email
Dr. Adam Wise and David Riley, McPherson Inc.

Photochemical deposition of organic films is a significant cause of performance loss in ultraviolet systems; when feasible, it can be reduced or eliminated with inert gas purging. Ultraviolet photons are highly energetic – enough to break bonds and reorganize molecules. They can efficiently reduce silver salts in photographic emulsions and damage DNA by dimerizing thymine bases. UV spectroscopy yields insight into high-energy processes in planetary atmospheres, stars and fusion reactors. Also, UV light’s short wavelength means less diffraction, enabling higher-resolution...Read full article

Related content from Photonics Media



    Articles


    Products


    Photonics Handbook Articles


    White Papers


    Webinars


    Photonics Dictionary Terms


    Media


    Photonics Buyers' Guide Categories


    Companies
    Published: October 2014
    Glossary
    photochemical
    The term photochemical pertains to chemical processes or reactions that are initiated or influenced by the absorption of light. Photochemical reactions involve the interaction of light, often in the form of ultraviolet or visible radiation, with molecules, leading to changes in their chemical structure or properties. These reactions are distinct from thermal or non-light-induced chemical reactions. Key characteristics of photochemical reactions include: Light absorption: Photochemical...
    photon
    A quantum of electromagnetic energy of a single mode; i.e., a single wavelength, direction and polarization. As a unit of energy, each photon equals hn, h being Planck's constant and n, the frequency of the propagating electromagnetic wave. The momentum of the photon in the direction of propagation is hn/c, c being the speed of light.
    ultraviolet
    That invisible region of the spectrum just beyond the violet end of the visible region. Wavelengths range from 1 to 400 nm.
    contaminationdepositionFeaturesindustriallensesLight SourcesMaterialsmirrorsOpticsphotochemicalphotonspectroscopyultravioletvacuumorganic filmgas purgereflective opticswindowless light

    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.