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Updated: Jun 12, 2026
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Published on: July 3, 2015
Efficient spatial self-phase modulation in the near-infrared and visible regimes of transition metal carbonitride
Jiawei Cao1, Xiaodan Xu1, Yixuan Huang2,3
1State Key Laboratory of Metastable Materials Science and Technology & Hebei Key Laboratory of Microstructural Material Physics, School of Science, Yanshan University, Qinhuangdao 066004, China. ljcj007@ysu.edu.cn.
Abstract:
Transition metal carbides, nitrides, and carbonitrides (MXenes) have attracted great interest in all-optical modulation applications due to their excellent nonlinear optical properties. Herein, we investigated the spatial self-phase modulation (SSPM) of Ti3CN flake suspension at wavelengths ranging from 405 to 1064 nm. Broadband third-order nonlinear optical susceptibility χ(3) values of Ti3CN were found to be ∼10-9 e.s.u. (5.35 × 10-9 e.s.u. at 532 nm), which was 3 to 5 times greater than those of transition metal dichalcogenides. In particular, Ti3CN exhibited a faster nonlinear optical response time (0.36 s) in the near-infrared region than that in the visible regime (0.4 to 0.53 s), with the response time increasing with wavelength in the visible regime. Our study reveals that Ti3CN can serve as a potential candidate for applications in nonlinear optical devices, especially for near-infrared all-optical devices.
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