Funding for this research was provided by:
National Science Foundation (DGE-1256260)
Air Force Office of Scientific Research (FA9550-15-1-0038)
Air Force Office of Scientific Research (FA9550-15-1-0038)
Article History
Received: 2 August 2017
Revised: 28 November 2017
Accepted: 15 January 2018
First Online: 7 February 2018