I just wanted to know the best way to make a laser. I was told to use
area lights, but it doesn't occur to me how that could work. I need the
light intensity and the width of the beam to remain almost constant and
for it to be seen from the side. I saw how to do it in 3D Studio Max,
but that doesn't help.
Also, can I make a halfway mirror that reflects on one side but is
transparent from the other side?

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