Trapping light rays aperiodically with mirrors

Zachary Mitchell, Gregory Simon, Xueying Zhao
2012 Involve. A Journal of Mathematics  
We construct a configuration of disjoint segment mirrors in the plane that traps a single light ray aperiodically, providing a negative solution to a conjecture of O'Rourke and Petrovici. We expand this to show that any finite number of rays from a source can be trapped aperiodically.
doi:10.2140/involve.2012.5.9 fatcat:x5vqfki5z5b5lpg2qmjjwy35bq