Abstract
We study the exfoliation of ultrathin ReS2 nanosheets from the prepared ReS2 powder and their application to Q-switched Er-doped fiber laser. XRD, Raman, and XPS spectra confirm the successful preparation of the layered ReS2. SEM images show that the obtained ReS2 sheets have lateral size below 200 nm. The thickness of the ReS2 nanosheets is smaller than 5 nm according to the AFM results. ReS2/PVA film is applied as a saturable absorber in an Er-doped Q-switched fiber laser, and a minimum pulse duration of 2.4 µs and an output power of 1.25 mW are obtained, indicating the potential application to Q-switched lasers.
摘要
本文通过液相剥离法从自制二硫化铼粉末中制备二硫化铼超薄纳米片, 并将其应用在调Q掺铒光纤激光器中. XRD、 Raman和XPS表征结果证明具有层状结构二硫化铼的成功合成; 通过SEM和AFM表征发现所制备的二硫化铼纳米片横向尺寸低于200 nm, 厚度小于5 nm. 将二硫化铼/PVA复合薄膜作为可饱和吸收体放入掺铒光纤激光器中可以获得调Q脉冲输出, 脉冲宽度最窄为2.4 μs, 输出功率为1.25 mW, 揭示了二硫化铼在Q调制方面的潜在应用价值.
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Lili TAO and Bo ZHOU designed the research. Junshan HE, Guohua ZENG, Shaoxian LIU, and Haiming LU conducted the experiments and processed the data. Junshan HE drafted the manuscript. Ruixian XIE and Jingjing QI helped organize the manuscript. Lili TAO and Bo ZHOU revised and finalized the paper.
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Junshan HE, Guohua ZENG, Shaoxian LIU, Haiming LU, Ruixian XIE, Jingjing QI, Lili TAO, and Bo ZHOU declare that they have no conflict of interest.
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Project supported by the Pearl River Talent Program of Guangdong Province, China (No. 2017GC010278), the Science and Technology Program of Guangzhou, China (No. 202002030027), the National Natural Science Foundation of China (No. 61705044), and the Distinctive Innovation Project of Regular Colleges in Guangdong Province, China (No. 2018KTSCX052)
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He, J., Zeng, G., Liu, S. et al. Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber lasers. Front Inform Technol Electron Eng 22, 296–302 (2021). https://doi.org/10.1631/FITEE.2000339
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DOI: https://doi.org/10.1631/FITEE.2000339