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Chinese Optics Letters, Volume. 18, Issue 4, 041403(2020)

Two-dimensional tellurene nanosheets as saturable absorber of passively Q-switched Nd:YAG solid-state laser

Tianhong Tang1, Fang Zhang1, Mengxia Wang1, Zhengping Wang1,2、*, and Xinguang Xu1,2、**
Author Affiliations
  • 1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • 2Key Laboratory of Functional Crystal Materials and Device (Shandong University), Ministry of Education, Jinan 250100, China
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    (a) Original bulk tellurium crystal, (b) prepared tellurene nanosheets dispersion liquid, and (c) tellurene nanosheets SA-coated sapphire substrate.

    Fig. 1. (a) Original bulk tellurium crystal, (b) prepared tellurene nanosheets dispersion liquid, and (c) tellurene nanosheets SA-coated sapphire substrate.

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    SEM images of (a) the bulk tellurium crystal and (b) the exfoliated tellurene nanosheet.

    Fig. 2. SEM images of (a) the bulk tellurium crystal and (b) the exfoliated tellurene nanosheet.

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    Characterizations of the tellurene thin film. (a) AFM image, (b) height profile, (c) HRTEM image, and (d) Raman spectrum.

    Fig. 3. Characterizations of the tellurene thin film. (a) AFM image, (b) height profile, (c) HRTEM image, and (d) Raman spectrum.

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    (a) Linear transmission spectrum of the tellurene SA and (b) the nonlinear transmittance of the tellurene thin film.

    Fig. 4. (a) Linear transmission spectrum of the tellurene SA and (b) the nonlinear transmittance of the tellurene thin film.

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    Schematic diagram of the passively Q-switched laser based on the tellurene.

    Fig. 5. Schematic diagram of the passively Q-switched laser based on the tellurene.

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    1064 nm passively Q-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset shows the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

    Fig. 6. 1064 nm passively Q-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset shows the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

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    1.3 μm dual-wavelength passively Q-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset is the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

    Fig. 7. 1.3 μm dual-wavelength passively Q-switched laser characteristics of the tellurene SA. (a) The CW and PQS output powers. The inset is the CW and PQS laser emission spectra. (b) The pulse duration and repetition frequency. (c) The single-pulse energy and peak power. (d) The pulse train and single-pulse profile.

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    (a) 2D and (b) 3D facula profile of the passively Q-switched 1.06 μm laser.

    Fig. 8. (a) 2D and (b) 3D facula profile of the passively Q-switched 1.06 μm laser.

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    • Table 1. Passively Q-switched Performance of Solid-state Laser for Different 2D Nanomaterials

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      Table 1. Passively Q-switched Performance of Solid-state Laser for Different 2D Nanomaterials

      Wavelength (μm)SA materialPulse propertiesReference
      Pump threshold (W)Average power (mW)Repetition frequency (kHz)Pulse width (ns)Peak power (W)
      1.06Graphene8.28105660180.50.88[39]
      BP1.21352203212[40]
      MoS21.232277329700.32[41]
      WS21.492014811123.72[42]
      ReS24.467027410802.3[38]
      Tellurene0.72140535.897.52.68This work
      1.3Graphene2.289013546614.14[43]
      BP0.91571753633[40]
      MoS26.952777290.93[41]
      ReS20.12782144030.9[44]
      Tellurene1.89112257.1177.72.45This work
      2.0Graphene5.63727.920800.84[45]
      BP–1217.731000.0002[46]
      MoS21.6510048.098002.59[47]
      WS22.7538144.256001.54[48]
      ReS21.152456774150.87[49]
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    Tianhong Tang, Fang Zhang, Mengxia Wang, Zhengping Wang, Xinguang Xu, "Two-dimensional tellurene nanosheets as saturable absorber of passively Q-switched Nd:YAG solid-state laser," Chin. Opt. Lett. 18, 041403 (2020)

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Nov. 23, 2019

    Accepted: Dec. 26, 2019

    Published Online: Apr. 15, 2020

    The Author Email: Zhengping Wang (zpwang@sdu.edu.cn), Xinguang Xu (xgxu@sdu.edu.cn)

    DOI:10.3788/COL202018.041403

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology