  Gravitational lensing caused by the gravitational field of massive objects
has been studied and acknowledged for a long period of time. In this paper,
however, we propose a different mechanism where the bending of light stems from
the non-linear interaction of gravitational, electromagnetic and axion waves
that creates the high curvature zone in the space-time fabric. The striking
distinction in the present study is that in contrast to the convex lensing in
the gravitational field of a massive object, hyperbolic nature of the high
curvature zone of the background space-time may give rise to concave lensing.
Expectedly detection of this kind of lensing becomes possible through satellite
detectors.
