  Spatial self-phase modulation (SSPM) is the optical nonlinear process and is
a result of spatially varying refractive index profile along the line of
propagation in a medium. SSPM is proved to be a method to demonstrate different
photonic functionalities. Transition metal dichalcogenides play a key role in
2D nanophononics due to their unique and fascinating properties. MoS2 is the
widely studied layered TMDs among all other 2D materials. This paper
demonstrates such photonic functionality using thermally induced nonlinear
optical response SSPM method, of MoS2 nano bottles. Thermally induced nonlinear
optical parameters have been estimated by utilizing the saturable absorption
response of h- BN, the nonreciprocal light propagation has been achieved. The
diode actions have also been demonstrated in liquid-solid and solid-solid
devices with the help of passive elements.
