Joachim Piprek received his doctorate in physics from Humboldt University Berlin, Germany. He has taught graduate courses at universities in Germany, Sweden, and in the United States. Most recently, he was a professor at the University of California at Santa Barbara, where he collaborated for several years with Shuji Nakamura on nitride device simulation and analysis. Joachim Piprek is currently the director of the NUSOD Institute (www.nusod.org). He has previously published two books and authored more than 100 journal and conference publications in this field.