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Laser beam temperature/laser physics question?
I understand there are lasers powerful enough to cut or burn things, but I'm wondering does the laser beam carry heat (is the beam hot?)? or is it based on the absorption of light on that the laser hits?
2 個解答
- Randy PLv 79 年前最愛解答
A laser usually has a single wavelength. If it's a visible-light laser, then the energy is all carried at that visible wavelength. So the heat is based on that absorption of that light.
- 4 年前
the respond is "entire inner mirrored photograph". What happens is that as quickly as the laser beam comes out of the hollow interior the bottle, the attitude it makes with the wall of the water flow is so shallow that extremely than penetrating the water/air interface, it reflects off the interface and maintains to be interior the water flow. it is going to proceed to bounce off of the exterior of the water flow and stay interior the flow. The "serious attitude" for the air/water interface is 40 8.6 °. If the sunshine hits the air/water interface at an attitude shallower than 40 8.6 °, it is going to replicate off of the interface extremely than passing by way of.