1. NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, Florida 32826, United States
2. CREOL, The College of Optics and Photonics, University of Central Florida, 4304 Scorpius Sreet, Orlando, Florida 32816, United States
3. Department of Physics, University of Central Florida, 4111 Libra Drive, Physical Sciences Bldg. 430, Orlando, Florida 32816, United States