Lee, Jongwon
Tymchenko, Mykhailo
Argyropoulos, Christos
Chen, Pai-Yen
Lu, Feng
Demmerle, Frederic
Boehm, Gerhard
Amann, Markus-Christian
Alù, Andrea
Belkin, Mikhail A.
Article History
Received: 27 September 2013
Accepted: 9 May 2014
First Online: 2 July 2014
Competing interests
: The authors declare no competing financial interests.