Issue 42, 2021

Investigation on the nonlinear optical properties of V2C MXene at 1.9 μm

Abstract

Two-dimensional (2-D) transition metal carbides, referred to as MXenes, attracted considerable attention in various application fields such as biosensors, biomedicine, energy conversion, electrocatalysis, environmental sensing, and nonlinear optics and photonics. This study examined the nonlinear optical properties of a vanadium-based MXene, V2C, at 1.9 μm wavelengths both theoretically and experimentally. First, the energy band structure and the corresponding optical parameters (real part and imaginary part of the refractive index and absorption coefficient) were calculated using density functional theory (DFT) calculations to determine the material potential. Second, the nonlinear optical properties of absorption and the refractive index of the V2C MXene were investigated systemically using both open-aperture (OA) and closed-aperture (CA) Z-scan techniques. Through the Z-scan measurements, the nonlinear optical parameters including a nonlinear absorption coefficient (β) and a nonlinear refractive index (n2) could be obtained in the 1.9 μm spectral region. The β and n2 were measured to be ∼−29.67 × 104 cm GW−1 and ∼−0.61 cm2 GW−1, respectively. Finally, the femtosecond mode-locking capability of V2C nanosheets as a base material for an ultrafast mode-locker was tested by fabricating and inserting an all-fiberized saturable absorber into a Tm–Ho-fiber cavity. Stable mode-locked pulses with a temporal width of ∼843 fs were generated at 1900 nm.

Graphical abstract: Investigation on the nonlinear optical properties of V2C MXene at 1.9 μm

Article information

Article type
Paper
Submitted
03 avg 2021
Accepted
02 okt 2021
First published
05 okt 2021

J. Mater. Chem. C, 2021,9, 15346-15353

Investigation on the nonlinear optical properties of V2C MXene at 1.9 μm

J. Lee, S. Kwon and J. H. Lee, J. Mater. Chem. C, 2021, 9, 15346 DOI: 10.1039/D1TC03610F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements