Coherent propulsion with negative-mass fields in a photonic lattice
Publication date
2019-12
Document type
Research article
Author
Pei, Yumiao
Hu, Yi
Zhang, Ping
Zhang, Chunmei
Lou, Cibo
Haunhorst, Christian
Christodoulides, Demetrios
Chen, Zhigang
Xu, Jingjun
Organisational unit
Scopus ID
Pubmed ID
Series or journal
Optics letters
Periodical volume
44
Periodical issue
24
First page
5949
Last page
5952
Part of the university bibliography
✅
Abstract
In this Letter, we demonstrate the first, to the best of our knowledge, coherent propulsion with negative-mass fields in an optical analog. We observe a self-accelerating state, driven by a nonlinear coherent interaction of its two components that are experiencing diffractions of opposite signs in a photonic lattice, which is analogous to the interaction of two objects with opposite mass signs. Surprisingly, the coherent propulsion is highly immune to the initial phase of the two components, which is in sharp contrast with the behavior encountered in traditional coherent wave interactions. Compared to its incoherent counter-part, the coherent propulsion exhibits an enhanced acceleration.
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