Mushtaq, A., Pradhan, B., Kushavah, D., Zhang, Y., Naumenko, D., Amenitsch, H., et al. (2022). Femtosecond induced third-order optical nonlinearity in quasi 2D Ruddlesden–Popper perovskite film deciphered using Z-scan. Materials Advances, 3(22), 8211-8219. doi:10.1039/D2MA00724J.