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Chinese Optics Letters, Volume. 17, Issue 4, 041401(2019)

Gold nanorods as saturable absorbers for the passively Q-switched Nd:LLF laser at 1.34  μm

Qizhang Qian1, Nan Wang2, Shengzhi Zhao1, Guiqiu Li1、*, Tao Li1, Dechun Li1, Kejian Yang1, Jie Zang1, and Houyi Ma2
Author Affiliations
  • 1School of Information Science and Engineering, and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Qingdao 266237, China
  • 2Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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    TEM images of the (a) GNR-5 and (b) GNR-8.

    Fig. 1. TEM images of the (a) GNR-5 and (b) GNR-8.

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    (a) Absorption spectra and (b) nonlinear transmissions of the GNRs with two aspect ratios.

    Fig. 2. (a) Absorption spectra and (b) nonlinear transmissions of the GNRs with two aspect ratios.

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    Scheme of diode-end-pumped passively Q-switched laser.

    Fig. 3. Scheme of diode-end-pumped passively Q-switched laser.

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    (a) Output power and (b) M2 factor of the CW laser with the 3.8% and 8% OCs.

    Fig. 4. (a) Output power and (b) M2 factor of the CW laser with the 3.8% and 8% OCs.

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    (a) Output power of the Q-switched laser with the 3.8% and 8% OCs; (b) spectrum of the passively Q-switched laser when utilizing GNR-5 as an SA.

    Fig. 5. (a) Output power of the Q-switched laser with the 3.8% and 8% OCs; (b) spectrum of the passively Q-switched laser when utilizing GNR-5 as an SA.

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    (a) Pulse width and repetition rate with the 3.8% OC; (b) waveform of the Q-switched laser utilizing GNR-5 with the 3.8% OC; (c) pulse width and repetition rate with the 8% OC; (d) waveform of the Q-switched laser utilizing GNR-5 with the 8% OC.

    Fig. 6. (a) Pulse width and repetition rate with the 3.8% OC; (b) waveform of the Q-switched laser utilizing GNR-5 with the 3.8% OC; (c) pulse width and repetition rate with the 8% OC; (d) waveform of the Q-switched laser utilizing GNR-5 with the 8% OC.

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    (a) Output power of the Q-switched laser versus the incident pump power with the 3.8% and 8% OCs; (b) spectrum of the passively Q-switched laser utilizing GNR-8 as an SA.

    Fig. 7. (a) Output power of the Q-switched laser versus the incident pump power with the 3.8% and 8% OCs; (b) spectrum of the passively Q-switched laser utilizing GNR-8 as an SA.

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    (a) Pulse width and repetition rate with the 3.8% OC; (b) waveform of the passively Q-switched laser utilizing GNR-8 as an SA with the 3.8% OC; (c) pulse width and repetition rate with the 8% OC; (d) waveform of the passively Q-switched laser utilizing GNR-8 as an SA with the 8% OC.

    Fig. 8. (a) Pulse width and repetition rate with the 3.8% OC; (b) waveform of the passively Q-switched laser utilizing GNR-8 as an SA with the 3.8% OC; (c) pulse width and repetition rate with the 8% OC; (d) waveform of the passively Q-switched laser utilizing GNR-8 as an SA with the 8% OC.

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    Qizhang Qian, Nan Wang, Shengzhi Zhao, Guiqiu Li, Tao Li, Dechun Li, Kejian Yang, Jie Zang, Houyi Ma. Gold nanorods as saturable absorbers for the passively Q-switched Nd:LLF laser at 1.34  μm[J]. Chinese Optics Letters, 2019, 17(4): 041401

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Dec. 4, 2018

    Accepted: Jan. 10, 2019

    Published Online: Apr. 3, 2019

    The Author Email: Guiqiu Li (gqiuli@sdu.edu.cn)

    DOI:10.3788/COL201917.041401

    Topics

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