Title: Coherent propulsion with negative-mass fields in a photonic lattice
Authors: Pei, Yumiao
Hu, Yi
Zhang, Ping
Zhang, Chunmei
Lou, Cibo
Haunhorst, Christian 
Kip, Detlef  
Christodoulides, Demetrios
Chen, Zhigang
Xu, Jingjun
Language: eng
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik::530 Physik
Issue Date: Dec-2019
Publisher: Soc.
Document Type: Article
Journal / Series / Working Paper (HSU): Optics letters 
Volume: 44
Issue: 24
Page Start: 5949
Page End: 5952
Publisher Place: Washington, DC
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.
Organization Units (connected with the publication): Experimentalphysik und Materialwissenschaften 
URL: https://api.elsevier.com/content/abstract/scopus_id/85076391354
ISSN: 01469592
DOI: 10.1364/OL.44.005949
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