Light emitting chemicals and electromagnetic fields.

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Discussion Overview

The discussion revolves around the inquiry into whether there are liquid chemicals that can emit light when excited by electrons or an electromagnetic field. Participants explore various types of luminescence and the conditions under which certain materials might emit light in response to electromagnetic fields.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant expresses interest in a liquid chemical that glows when excited by an electromagnetic field, questioning the transformation of electrical energy into photons.
  • Another participant mentions chemiluminescence as a relevant phenomenon, noting that it involves a chemical reaction.
  • Phosphorescent materials, which glow after exposure to light, are discussed, with a reference to their use in non-destructive testing.
  • Some participants clarify that a static magnetic field will not induce phosphorescence, but a time-varying field might, depending on energy levels.
  • Magnetoluminescence is suggested as a potential area of research, with a recommendation to search for related theories.
  • Questions arise regarding the specific type of electromagnetic field being generated, with suggestions that RF fields might allow for the use of thermoluminescent compounds.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specific conditions or types of chemicals that would emit light in response to electromagnetic fields. Multiple viewpoints and suggestions are presented, indicating ongoing uncertainty and exploration of the topic.

Contextual Notes

Participants highlight the need for clarification on the type of electromagnetic field being discussed, which may affect the applicability of various luminescent materials. The discussion also touches on the limitations of static versus time-varying fields in inducing luminescence.

Squishynoise
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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.
 
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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
http://en.wikipedia.org/wiki/Photoluminescence

http://www.rp-photonics.com/photoluminescence.html

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
http://www.lce.hut.fi/~jtulkki/publications/rev/index.html
 
Squishynoise said:
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?
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:
Gokul43201 said:
What do you mean by electromagnetic field ? That's what light is ! A photon is a quantum of the electromagnetic field.

Please clarify - what kind of field generator are you using ?
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 -
HANDBOOK OF THERMOLUMINESCENCE
http://www.worldscibooks.com/physics/5167.html
 

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