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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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twovests wrote

I don't know a lot about lasers and orientation!

But yeah, tunable lasers cost a lot of money. Like, price-not-listed-call-us-for-a-quote prices. As I understand, argon ion lasers could emit most of the frequency spectrum.

Definitely going to revisit this thread if I happen to run into someone who knows more lol

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