Is it Possible to Change Light Color with Material?”

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The discussion explores the possibility of materials that can change the color of light, specifically from a 650 nm wavelength (reddish) to 420 nm (bluish). While wavelength-shifting plastics can reduce light energy and shift it to redder wavelengths, they cannot shift light to shorter wavelengths. Diode-pumped solid-state lasers (DPSS) are mentioned as a method that generates longer wavelengths and emits shorter ones, but they do not meet the original query. The potential benefits of such a passive material in medical and industrial laser applications are highlighted. Overall, no existing material fully meets the criteria for significant wavelength reduction as described.
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Hello , I'm new in here.

I'm not physicist , but I wonder if it is possible to have such material , that changes the color of the light. For example we take a piece of glass , we shoot it with a LASER beam of light with 650 nm wave length ( redish ) and the beam , escaping the glass would be for example 420 nm .

Is there such material like this glass ? Or something similar ?
 
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There are wavelength shifting plastics. Note that these only can reduce the energy of the light - make it redder, never bluer.
 
You might review the principle of a diode-pumped solid state laser (dpss). Using a crystal these generate 808 nm and emit 532 nm (green). Not what you're looking for but I suspect as close as you will get.

In the medical/industrial laser field, such a passive material as you are describing would be hugely beneficial
 
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