MadSci Network: Physics
Query:

Subject: passive frequency shifting material

Date: Sun Jul 31 21:37:33 2005
Posted by Tiago Estill de Noronha
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: Brasil
Area of science: Physics
ID: 1122863853.Ph
Message:

are there any known material or combination of materials that will let light
(and other EM radiations) pass thru but will change its frequency?
for example,  I shine my keychain red laser thru it and the dot on the wall
becomes greenish, or perhaps, make a lens out of the material and I'll be able
to see the uv lights as blueish when wearing the goggles


Re: passive frequency shifting material

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