Z-scan Measurements on nonlinear absorption and refraction of physical vapor deposition-grown Cr₂Te₃ at a wavelength of 1560 nm

Over the past few decades, two-dimensional (2D) nanomaterials have been widely utilized in field of nonlinear photonics [1]. Instabilities to environmental conditions and/or the absence of appropriate synthesis methods for controlling the morphologies of 2D nanomaterials have degraded their electronic and optical performances [2]. Therefore, it is crucial that new 2D materials are identified and used, along with well-defined methods to synthesize them. Bottom-up synthesis and particularly physical vapor deposition (PVD) is known to provide high-quality 2D nanomaterials that allow full control over the layer number, morphology, orientation, phase, and defects [3].