>>16564695
IR emission with that pattern? 532nm to 1064nm and 450nm to 900nm? random guess

>>16564695
what is the significance of this?

>Light, being massless, casts no shadow; under ordinary circumstances, photons pass right through each other unimpeded. Here, we demonstrate a laser beam acting like an object — the beam casts a shadow upon a surface when the beam is illuminated by another light source. We observe a regular shadow in the sense it can be seen by the naked eye

>>16565284
its heating the air? thats how candle flames can cast a shadow

>>16565329
The optics all happen inside a ruby crystal and the image is in reality a projection of atomic interactions within the ruby crystal. There is no shadow and the article is disingenuous to the point of a lie.

>>16565360
yeah i see what you mean now.