agravlin
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- Jun 26, 2010
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Why exactly is it only possible to make plain old diodes that produce only a few wavelengths?
Why do we have to produce 532nm light with IR flowing through a crystal? Why do we have to produce 488nm light by passing a beam through Argon gas?
These wavelengths are functionally no different from any other visible light. Why can't they be produced by a diode alone?
Why do we have to produce 532nm light with IR flowing through a crystal? Why do we have to produce 488nm light by passing a beam through Argon gas?
These wavelengths are functionally no different from any other visible light. Why can't they be produced by a diode alone?