2D BP/InSe Heterostructures As a Nonlinear Optical Material for Ultrafast Photonics

Overview

Journal Nanomaterials (Basel)

Date 2022 Jun 10

PMID 35683665

Authors

Yiqing Shu

Zijun Zhong

Chunyang Ma

Penglai Guo

Leiming Wu

Zhitao Lin

Xun Yuan

Jianqing Li

Weicheng Chen

Quanlan Xiao

Affiliations

Soon will be listed here.

Abstract

The BP/InSe heterojunction has attracted the attention of many fields in successful combined high hole mobility of black phosphorus (BP) and high electron mobility of indium selenide (InSe), and enhanced the environmental stability of BP. Nevertheless, photonics research on the BP/InSe heterostructure was insufficient, while both components are considered promising in the field. In this work, a two-dimensional (2D) BP/InSe heterostructure was fabricated using the liquid-phase exfoliation method. Its linear and non-linear optical (NLO) absorption was characterized by ultraviolet-visible-infrared and Open-aperture Z-scan technology. On account of the revealed superior NLO properties, an SA based on 2D BP/InSe was prepared and embedded into an erbium-doped fiber laser, traditional soliton pulses were observed at 1.5 μm with the pulse duration of 881 fs. Furthermore, harmonic mode locking of bound solitons and dark-bright soliton pairs were also obtained in the same laser cavity due to the cross-coupling effect. The stable mode-locked operation can be maintained for several days, which overcome the low air stability of BP. This contribution further proves the excellent optical properties of 2D BP/InSe heterostructure and provides new probability of developing nano-photonics devices for the applications of double pulses laser source and long-distance information transmission.

Citing Articles

Emerging Xene-Related Nanostructures for Versatile Applications.

Wang M, Huang W Nanomaterials (Basel). 2023; 13(3).

PMID: 36770478 PMC: 9920832. DOI: 10.3390/nano13030517.

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