Some time ago, I read that 457 nm lasers were very expensive. However, 457 nm lasers do seem to be quite efficient; for example, CNI sells those that go up to 8 W.
If they are that efficient, then why would they be so expensive? Also, why has no companies started selling 457 nm portables yet?
If they are that efficient, then why would they be so expensive? Also, why has no companies started selling 457 nm portables yet?