Title

Optical Analogues For Massless Dirac Particles And Conical Diffraction In One Dimension

Abstract

We demonstrate that light propagating in an appropriately designed lattice can exhibit dynamics akin to that expected from massless relativistic particles as governed by the one-dimensional Dirac equation. This is accomplished by employing a waveguide array with alternating positive and negative effective coupling coefficients, having a band structure with two intersecting minibands. Through this approach optical analogues of massless particle-antiparticle pairs are experimentally realized. One-dimensional conical diffraction is also observed for the first time in this work. © 2012 American Physical Society.

Publication Date

7-13-2012

Publication Title

Physical Review Letters

Volume

109

Issue

2

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.109.023602

Socpus ID

84863822082 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84863822082

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