TY - JOUR
T1 - Nonlinear conical diffraction in superhoneycomb lattice induced in a photorefractive crystal
AU - Tian, Yiqing
AU - Zhong, H. U.A.
AU - Belić, Milivoj R.
AU - Zhang, Yanpeng
AU - Li, Fuli
AU - Zhang, Yiqi
N1 - Publisher Copyright:
© 2019, Editura Academiei Romane. All rights reserved.
PY - 2019
Y1 - 2019
N2 - We report nonlinear conical diffraction in the superhoneycomb lattice, which is an edge-centered honeycomb lattice, induced in a photorefractive crystal. This system is of special interest, as it represents a hybrid fermionic – bosonic physical system. When nonlinearity is imposed, conical diffraction from a fermionic Dirac cone will change from circular diffraction rings, formed by small hexagons, into a triangular arrangement of hexagons. But from the bosonic Dirac cone, conical diffraction changes into elliptic diffraction rings of different inner symmetries, with the outer ring intensity damped.
AB - We report nonlinear conical diffraction in the superhoneycomb lattice, which is an edge-centered honeycomb lattice, induced in a photorefractive crystal. This system is of special interest, as it represents a hybrid fermionic – bosonic physical system. When nonlinearity is imposed, conical diffraction from a fermionic Dirac cone will change from circular diffraction rings, formed by small hexagons, into a triangular arrangement of hexagons. But from the bosonic Dirac cone, conical diffraction changes into elliptic diffraction rings of different inner symmetries, with the outer ring intensity damped.
KW - Nonlinear conical diffraction
KW - Photorefractive crystal
KW - Superhoneycomb lattice
UR - https://www.scopus.com/pages/publications/85077209776
M3 - Article
AN - SCOPUS:85077209776
SN - 1221-1451
VL - 71
JO - Romanian Reports in Physics
JF - Romanian Reports in Physics
IS - 4
M1 - 412
ER -