No, but the aliens were discovered because one of them built a ship based on this idea (&quot;solar&quot; sail with a ground-based propulsive laser) and happened to arrive in a human-inhabited system.<p><a href="https:&#x2F;&#x2F;books.google.com&#x2F;books?id=lKt5laoj1coC&amp;pg=PA55&amp;lpg=PA55&amp;dq=mote+in+god%27s+eye+laser&amp;source=bl&amp;ots=QTucO9WK2p&amp;sig=fwQ9HNOZjtl4at5mi9aWZpuKpQs&amp;hl=en&amp;sa=X&amp;ved=0ahUKEwjDva2m8YvLAhVEpx4KHWz0BfsQ6AEILzAB#v=onepage&amp;q=mote%20in%20god%27s%20eye%20laser&amp;f=false" rel="nofollow">https:&#x2F;&#x2F;books.google.com&#x2F;books?id=lKt5laoj1coC&amp;pg=PA55&amp;lpg=P...</a>