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Light emitting chemicals and electromagnetic fields.

  1. Apr 27, 2006 #1
    I am stumped, and googled out.

    I am interested in knowing whether or not anyone knows of a chemical in liquid form, that will glow or emit light when it is excited by electrons, or more specifically an electromagnetic field.

    If I am generating an electromagnetic field and want to be able to use an areosol spray to illuminate that field I would pretty much have to have a liquid chemical that can transform electrical energy into photons right?

    Just curious!

    Thanks in advance for any answers pro or con.
  2. jcsd
  3. Apr 28, 2006 #2


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    Staff: Mentor

    Well, there is chemiluminescence, but that means a chemical reaction.

    In non-destructive testing, one method is dye penetrant testing in which one uses a dye that is illuminated by a UV light, which is phosphorescent.

    Some materials are phosphorescent after exposure to visible light - "some glow in the dark" chemicals.

    See - http://en.wikipedia.org/wiki/Phosphorescence


    Certainly a static magnetic field will not induce phosphorescence, but a time varying one might if the energy is sufficient.

    One might search for "Magnetoluminescence" on Google - there appears to be a fair amount of sites mentioning this. But one might add other qualifiers like "theory".

    Magnetoluminescence from strain induced quantum dots
  4. Apr 28, 2006 #3


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    Staff Emeritus
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    What do you mean by electromagnetic field ? That's what light is ! A photon is a quantum of an electromagnetic field.

    Please clarify - what kind of field generator are you using ?
    Last edited: Apr 28, 2006
  5. Apr 28, 2006 #4


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    Staff: Mentor

    Gokul prompted a thought - if it's an RF field, e.g. microwave, then perhpas some thermoluminescent compound would be appropriate. Otherwise, you're pretty much stuck with visible or UV.

    Some background - http://en.wikipedia.org/wiki/Thermoluminescence

    Maybe look into this book -
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