Persistence and breakdown of Airy beams driven by an initial nonlinearity.
We study the behavior of Airy beams propagating from a nonlinear medium to a linear medium. We show that an Airy beam initially driven by a self-defocusing nonlinearity experiences anomalous diffraction and can maintain its shape in subsequent propagation, but its intensity pattern and acceleration cannot persist when driven by a self-focusing nonlinearity. The unusual behavior of Airy beams is examined from their energy flow as well as the Brillouin zone spectrum of self-induced chirped photonic lattices.
Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA.
Yi
Y
Hu
Simon
S
Huang
Peng
P
Zhang
Cibo
C
Lou
Jingjun
J
Xu
Zhigang
Z
Chen