1. NanoScience Technology Center, University of Central Florida, 12424 Research Pkwy., Orlando, Florida 32826, USA
2. College of Optics and Photonics, University of Central Florida, 4304 Scorpius St., Orlando, Florida 32816, USA
3. IQE IR, 119 Technology Drive, Bethlehem, Pennsylvania 18015, USA
4. IQE IR, Cypress Drive, St. Mellons, Cardiff CF3 0LW, United Kingdom
5. Department of Physics, University of Central Florida, 4111 Libra Dr., Orlando, Florida 32816, USA