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  • Received: May. 21, 2020

    Accepted: Sep. 9, 2020

    Posted: Sep. 11, 2020

    Published Online: Oct. 10, 2020

    The Author Email: Jun Liu (liu-jun-1987@live.cn)

    DOI: 10.1364/PRJ.398203

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    Zhenhong Wang, Bin Zhang, Bing Hu, Zhongjun Li, Chunyang Ma, Yu Chen, Yufeng Song, Han Zhang, Jun Liu, Guohui Nie. Two-dimensional tin diselenide nanosheets pretreated with an alkaloid for near- and mid-infrared ultrafast photonics[J]. Photonics Research, 2020, 8(11): 11001687

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Photonics Research, Vol. 8, Issue 11, 11001687 (2020)

Two-dimensional tin diselenide nanosheets pretreated with an alkaloid for near- and mid-infrared ultrafast photonics

Zhenhong Wang1,†, Bin Zhang1,†, Bing Hu1, Zhongjun Li1, Chunyang Ma1, Yu Chen1, Yufeng Song1, Han Zhang1, Jun Liu1,*, and Guohui Nie1,2

Author Affiliations

  • 1Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics; Institute of Translational Medicine, Department of Otolaryngology, Shenzhen Second People’s Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center; International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
  • 2e-mail: nghui@21cn.com

Abstract

Two-dimensional (2D) tin diselenide (SnSe2), a novel layered material with excellent optical and electronic properties, has been extensively investigated in various promising applications, including photodetectors, optical switching, and ultrafast photonics. In this work, SnSe2 nanosheets have been obtained after pretreatment in an alkaloid, exhibiting high optical absorption and electron-enriched properties. Besides, the performances of the prepared SnSe2 in near-infrared (NIR) and mid-infrared (MIR) ultrafast photonics are presented. Notably, by employing the SnSe2-deposited microfiber device as a saturable absorber (SA) exhibiting typical nonlinear optical absorption properties, stable ultrashort pulses and rogue waves are realized in an erbium-doped fiber laser. Furthermore, the SnSe2-deposited SA device is also applied to a thulium-doped fiber laser to achieve stable ultrashort pulses. This study indicates that SnSe2 is expected to be a suitable candidate for ultrafast fiber lasers in the NIR and MIR regions.

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