Let's talk about lasers.

There is a limit to how powerful the laser can be. The thing that causes this effect is the asymmetry in photon flow. Because, photons are traveling overlapping, that causes internal interaction in laser rays.

There are always little differences in energy levels of photons that are in the different positions in laser rays. And that thing causes turbulence in the coherent light. In that case, the turbulence causes a lack of energy.

There is a possibility to increase the power of the laser ray by putting photons traveling in lines. If photons are forming straight wall-looking structures they are not disturbing each other so much. And that thing makes it possible to increase the power of the laser ray.

The thing that destroys the target is heat expansion. Or actually, the thing in the heat expansion destroys material is the end of the radiation. When energy stress ends, that thing causes the situation where the particle delivers its extra energy as the radiation impulse. That radiation impulse is the thing that destroys the bonds of the material.

The power of the laser is not as important as people think. The more important thing is how much energy the laser will deliver to the target during the operation.

The important thing is what kind of radiation it gives. Some lasers are giving short and high-energy pulses. That is knocking the target.

And other lasers are giving long-term impulse, that suddenly ends. That kind of laser can deliver very much energy to the target even if their energy level is not maximum. And they can be more devastating than high-power lasers that give only short-term pulses.

Sources:

(https://bigthink.com/starts-with-a-bang/laser-energy-limit/)

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