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Converting Red Light Spectrum to Blue

  1. Nov 11, 2015 #1
    Hi,
    Is there any known ways in Physics how to convert Red light to blue?
     
  2. jcsd
  3. Nov 11, 2015 #2

    mfb

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    Upconversion, for example. Your question is very vague. Where does the red light come from and what do you want to do with the blue light?
     
  4. Nov 11, 2015 #3
    Any possible light source.
     
  5. Nov 11, 2015 #4

    mfb

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    Does "let the light shine on a photovoltaic cell, use the electricity to operate a source of blue light" count as well?
    What about growing plants with red light, burning them in a power plant and operating a light source with it?
    You see how vague the question is?
     
  6. Nov 11, 2015 #5
    Can we keep the applications private:smile:. An effortless conversion is always best.
     
  7. Nov 11, 2015 #6

    russ_watters

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    Get in a spaceship, travel away from earth, then turn around and travel toward it at high speed.

    Sound absurd? Without knowing the constraints, that's all we can do. This type of free-form, idle speculation is not useful. Thread locked.
     
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