Demonstration of Spatial Self Phase Modulation based photonic diode functionality in MoS2/h-BN medium

TL;DR

This paper demonstrates a photonic diode based on spatial self-phase modulation in MoS2/h-BN media, utilizing nonlinear optical responses for nonreciprocal light propagation and diode functionalities in various device configurations.

Contribution

It introduces a novel photonic diode using SSPM in MoS2/h-BN, highlighting thermally induced nonlinear optical effects for nonreciprocal light control.

Findings

Successful demonstration of nonreciprocal light propagation.

Estimation of nonlinear optical parameters of MoS2 and h-BN.

Implementation of diode actions in liquid-solid and solid-solid devices.

Abstract

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.