system
Given the following post, respond as if you're commenting on Reddit:
human
Is it possible to halt a light beam with light?

I was reading about destructive interference, and I suspect that this might give some insight to my question, but I don't know if it totally answers it. 

Basically if there are two lasers perpendicular to one another, could one beam act as a wall so that the other does not shine beyond it? If it is possible to do is it dependent on the actual wavelength of the light, or is it relative (as in a blue laser would block a red laser but not a green one)?

Thanks in advance!
gpt
Light belongs to a class of particles that do not bounce or recoil off one another, they simply pass right through each other.  This may make more sense if you think of light as a wave - waves do not bounce or halt one another.