Luke Mawst's research interests focus on material growth and fabrication issues for III/V compound semiconductor devices. Improvements in device performance can be directly linked to advances in material growth and process development. He is particularly interested in the development of semiconductor diode lasers using the metalorganic chemical vapor deposition (MOCVD) growth process. The MOCVD process allows for the controlled growth of ultra-thin semiconductor films with abrupt interfaces, permitting the fabrication of high performance quantum-well lasers and other optoelectronic devices. Understanding the influence of the material properties on device characteristics can lead to significant improvements in performance.