1. Electrical Engineering DepartmentUniversity of Arkansas 4183 Bell Engineering Center Fayetteville AR 72701 USA
2. Institute for Nanoscience and EngineeringUniversity of Arkansas 731 W Dickson St Fayetteville AR 72701 USA
3. Microelectronics-Photonics ProgramUniversity of Arkansas 731 W Dickson St Fayetteville AR 72701 USA