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SnS Nanosheets for 105th Harmonic Soliton Molecule Generation
Author(s) -
Feng Jiangjiang,
Li Xiaohui,
Qyyum Abdual,
Zhang Ying,
Zheng Chuang,
Wang Yamin,
Liu Jie,
Lu Jiangbo,
Zhu Gangqiang
Publication year - 2019
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201900273
Subject(s) - ultrashort pulse , photonics , materials science , saturable absorption , optoelectronics , laser , photoelectric effect , soliton , absorption (acoustics) , laser science , fiber laser , optics , nonlinear system , physics , wavelength , quantum mechanics , composite material
As a member of the 2D group IV monochalcogenides (MX; M = Sn, Ge; X = S, Se), SnS has attracted great interest due to its outstanding optical, electrical, and optoelectronic properties. Especially, SnS nanosheets material have a large absorption coefficient and high photoelectric conversion efficiency, it can be potentially used in optical modulators, saturable absorbers, solar cells, supercapacitors, and other optical devices. However, the nonlinear optical properties of SnS nanosheets and their applications in ultrafast photonics are seldom studied. In this paper, the nonlinear optical properties of SnS nanosheets have been characterized through a dual‐balance detection system, whose modulation depth is 5.8%. More importantly, 105th harmonic soliton molecule based on SnS saturable absorbers has been realized for the first time to the authors’ knowledge. A compact mode‐locked fiber laser with a pulse duration of 1.02 ps and a repetition rate of 459 MHz is realized near 1.5 µm. It is demonstrated that SnS nanosheets have outstanding nonlinear properties and play an extremely important role in the field of ultrafast photonics.