1. Department of Chemistry, CREOL, College of Optics and Photonics, and Department of Physics, University of Central Florida, Orlando, Florida 32816, Institute of Physics, Prospect Nauki, 46, Kiev-28, 03028, Ukraine, Insitute of Organic Chemistry, Murmanskaya Street, 5, Kiev, 03094, Ukraine, NanoScience Technology Center, 12424 Research Parkway, Suite 400, University of Central Florida, Orlando, Florida 32826