Molybdenum disulfide (MoS2) as a broadband saturable absorber for ultra-fast photonics
Molybdenum disulfide (MoS2) as a broadband saturable absorber for ultra-fast photonics
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DOI：
10.1364/oe.22.007249
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发表时间：
2014-03-24
期刊：
影响因子：
3.8
通讯作者：
Loh, K. P.
中科院分区：
文献类型：
--
作者：
Zhang, H.;Lu, S. B.;Loh, K. P.
利用激光研究了水热剥离法制备的少层MoS2纳米片在可见光到近红外波段的非线性光学性质。利用开孔Z扫描和平衡探测器测量技术研究了少层二硫化钼的宽带可饱和吸收特性。为了探索其在超快光子学中的潜在应用，我们采用光阱法在光纤端面沉积多层MoS2，制备了一种用于掺镱光纤激光器的被动锁模器。实验结果表明，少层MoS_2锁模器可产生中心波长为1054.3nm、3dB带宽为2.7nm、脉宽为800ps的稳定锁模脉冲。我们的研究结果表明，少层MoS2纳米片可以作为激光光子学器件的非线性光学材料，如被动激光锁模器、Q开关、光限幅器、光开关等。（C）2014年美国光学学会
The nonlinear optical property of few-layered MoS2 nanoplatelets synthesized by the hydrothermal exfoliation method was investigated from the visible to the near-infrared band using lasers. Both open-aperture Z-scan and balanced-detector measurement techniques were used to demonstrate the broadband saturable absorption property of few-layered MoS2. To explore its potential applications in ultrafast photonics, we fabricated a passive mode locker for ytterbium-doped fibre laser by depositing few-layered MoS2 onto the end facet of optical fiber by means of an optical trapping approach. Our laser experiment shows that few-layer MoS2-based mode locker allows for the generation of stable mode-locked laser pulse, centered at 1054.3 nm, with a 3-dB spectral bandwidth of 2.7 nm and a pulse duration of 800 ps. Our finding suggests that few-layered MoS2 nanoplatelets can be useful nonlinear optical material for laser photonics devices, such as passive laser mode locker, Q-switcher, optical limiter, optical switcher and so on. (C) 2014 Optical Society of America