flabberghaster

flabberghaster OP wrote (edited )

This is the question I had! Nice! Thank you!

I always thought a laser was special just because all the photons were in the same orientation and so they didn't cause interference from one another, so it appeared more intense and stayed in a tight beam. I did not know you could also in theory use them to create different wavelengths.

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flabberghaster OP wrote

There is no single frequency of light that will stimulate the different types of cones in the correct levels for you to perceive magenta, that only occurs if there is a mix of frequencies hitting your eyes that stimulate the blue and red cones a lot without stimulating the green cones, and as the green cone range lies somewhere in between the red and blue cone range that can't happen with a single frequency.

That I know. It's more a question of why we can't create light at arbitrary wavelengths, not why we can't create any given color using only a single wavelength.

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flabberghaster OP wrote

No they use three different color lights and mix them at different intensities and it looks to our eye like that color. What I mean is why can't we create arbitrary, single frequency colored lights when we can do that with radio waves? Is it just because we don't know how to do it in that range?

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