Issue 30, 2019

NiPS3 nanoflakes: a nonlinear optical material for ultrafast photonics

Abstract

Ultrafast photonics based on two-dimensional (2D) materials has been used to investigate light–matter interactions and laser generation, as well as light propagation, modulation, and detection. Here, 2D metal-phosphorus trichalcogenides, which are known for applications in catalysis and electrochemical storage, also exhibit advantageous photonic properties as nanoflakes that are only a few layers thick. By using an open-aperture Z-scan system, few-layer NiPS3 nanoflakes exhibited a large modulation depth of 56% and a low saturable intensity of 16 GW cm−2 at 800 nm. When NiPS3 nanoflakes were used as a saturable absorber at 1066 nm, highly stable mode-locked pulses were generated. Thus, these results revealed the nonlinear optical properties of NiPS3 nanoflakes which have potential photonics applications, such as modulators, switches, and thresholding devices.

Graphical abstract: NiPS3 nanoflakes: a nonlinear optical material for ultrafast photonics

Supplementary files

Article information

Article type
Paper
Submitted
09 May 2019
Accepted
26 Jun 2019
First published
11 Jul 2019

Nanoscale, 2019,11, 14383-14391

NiPS3 nanoflakes: a nonlinear optical material for ultrafast photonics

J. Liu, X. Li, Y. Xu, Y. Ge, Y. Wang, F. Zhang, Y. Wang, Y. Fang, F. Yang, C. Wang, Y. Song, S. Xu, D. Fan and H. Zhang, Nanoscale, 2019, 11, 14383 DOI: 10.1039/C9NR03964C

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