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Ultrafast Nonlinear Optical Properties and Carrier Dynamics of TaCT and MoTiCT MXene Nanosheets
Conference proceeding

Ultrafast Nonlinear Optical Properties and Carrier Dynamics of TaCT and MoTiCT MXene Nanosheets

Michalis Stavrou, Benjamin Chacon, Maria Farsari, Anna Maria Pappa, Lucia Gemma Delogu, Yury Gogotsi and David Gray
Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference (Online)
23 Jun 2025
DOI: https://doi.org/10.1109/CLEO/EUROPE-EQEC65582.2025.11110713

Abstract

Metals Nonlinear optical devices Optical devices Optical modulation Optical switches Resistance heating Surface resistance Ultrafast optics Optical Materials Photonics
Materials exhibiting strong nonlinear optical (NLO) properties along with fast carrier recovery have fostered significant advancements in photonic devices, enabling the development of ultrafast lasers, optical limiters, optical switches, modulators, photodetectors, and more. Among these materials, transition metal carbides, nitrides, and carbonitrides (MXenes), characterized by the general formula \mathrm{M}_{\mathrm{n}+1}\mathrm{X}_{\mathrm{n}}\mathrm{T}_{x} (where M is a transition metal, X is C or N, and \mathrm{T}_{x} represents surface terminated groups such as -OH, -O, or -F), are particularly attractive for such applications due to their exceptional NLO response, broadband absorption, ultrafast carrier relaxation, and resistance to radiation and heat.

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