Dr. Weidong Zhou, Photonics Center, University of Texas at Arlington (UTA) Scaling towards high-power single-mode PCSELs and PCSEL Arrays (Photonic Crystal Surface-Emitting Lasers)  Abstract When it was first invented 60 years ago, the laser was described as “A solution looking for a problem”. Few predicted that lasers would ultimately support multi-trillion-dollar photonics-enabled markets today. Based