The fundamental theorem of calculus is very important to understanding this subject.
I would add something like:
The reason why the superconductor laser is blue, is due to the integral of its resonance modes.
From the fundamental theorem of calculus, we understand that this is because the derivative of the temperature is too small.
As an added bonus, a mention of Newton's rule would also be very useful.

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Thanks, you're totally right, I'll look into it!
Just fixed the issue on a new edit, thanks.