1. CREOLThe College of Optics and PhotonicsUniversity of Central Florida Orlando FL 32816 USA
2. School of Physics and EngineeringZhengzhou University Zhengzhou 450001 China
3. GoerTek Electronics 5451 Great America Parkway, Suite 301 Santa Clara CA 95054 USA
4. Department of Materials Science & EngineeringUniversity of Central Florida Orlando FL 32816 USA