Review article

Third-Order Optical Nonlinearities of 2D Materials at Telecommunications Wavelengths

Linnan JiaOptical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaJiayang WuOptical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaYuning ZhangOptical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaYang QuOptical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, AustraliaBaohua JiaAustralian Research Council (ARC) Industrial Transformation Training, Centre in Surface Engineering for Advanced Materials (SEAM), RMIT University, Melbourne, VIC 3000, AustraliaDavid MossOptical Sciences Center, Swinburne University of Technology, Hawthorn, VIC 3122, Australia

2023en

ABI

Abstract

All-optical signal processing based on nonlinear optical devices is promising for ultrafast information processing in optical communication systems. Recent advances in two-dimensional (2D) layered materials with unique structures and distinctive properties have opened up new avenues for nonlinear optics and the fabrication of related devices with high performance. This paper reviews the recent advances in research on third-order optical nonlinearities of 2D materials, focusing on all-optical processing applications in the optical telecommunications band near 1550 nm. First, we provide an overview of the material properties of different 2D materials. Next, we review different methods for characterizing the third-order optical nonlinearities of 2D materials, including the Z-scan technique, third-harmonic generation (THG) measurement, and hybrid device characterization, together with a summary of the measured n2 values in the telecommunications band. Finally, the current challenges and future perspectives are discussed.

Identifiers

DOI: 10.3390/mi14020307

Citations and references

Cited by 20 references

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