Asano, M.
Bliokh, K. Y.
Bliokh, Y. P.
Kofman, A. G.
Ikuta, R. http://orcid.org/0000-0001-8628-7177
Yamamoto, T.
Kivshar, Y. S.
Yang, L.
Imoto, N.
Özdemir, Ş.K.
Nori, F. http://orcid.org/0000-0003-3682-7432
Article History
Received: 28 June 2016
Accepted: 7 October 2016
First Online: 14 November 2016
Competing interests
: The authors declare no competing financial interests.