Nonlinear optical properties of two and three-dimensional hybrid perovskite using single beam F-scan technique at 1064 nm

TL;DR

This study measures the nonlinear optical properties of two- and three-dimensional hybrid perovskites at 1064 nm using F-scan techniques, highlighting their potential for photonics applications like optical limiting and switching.

Contribution

It provides the first measurement of two-photon absorption and nonlinear refractive index for a new 2D hybrid perovskite at 1064 nm, comparing it with a 3D counterpart.

Findings

2D perovskite has lower figure of merit than 3D.

Both materials show potential for optical limiting.

Measured nonlinear coefficients differ between 2D and 3D perovskites.

Abstract

In this paper two-photon absorption coefficient $\beta$ and nonlinear refractive index ${n}_{2}$ have been measured at 1064 nm for a new two-dimensional (CH3(CH2)2NH3)2(CH3NH3)2Pb3Br10 hybrid perovskite. The nonlinear optical properties were measured using transmission and reflection F-scan techniques. As a reference, a three-dimensional CH3NH3PbBr3 has been used. As expected, the values obtained for ${n}_{2}$ and $\beta$ show a difference between these two materials. The figure of merit for both, three dimensional and two-dimensional perovskites are F=0.31 and F=0.04, respectively, implying that these materials can be used in photonics applications such as optical limiting devices and all-optical switching.