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Ultrathin Metal–Organic Framework: An Emerging Broadband Nonlinear Optical Material for Ultrafast Photonics
Advanced Optical Materials ( IF 9 ) Pub Date : 2018-06-17 , DOI: 10.1002/adom.201800561
Xiantao Jiang 1, 2, 3 , Liangjing Zhang 4 , Shunxiang Liu 2 , Yiyue Zhang 4 , Zhiliang He 1, 2 , Wenjia Li 2 , Feng Zhang 1, 2 , Yihuang Shi 2 , Wei Lü 2 , Yu Li 5 , Qiao Wen 2 , Jiagen Li 6 , Jun Feng 2 , Shuangchen Ruan 4 , Yu-Jia Zeng 4 , Xi Zhu 6 , Yuerui Lu 3 , Han Zhang 1, 2
Affiliation  

Crystalline porous metal–organic frameworks (MOFs) with nanometer‐sized void spaces, large surface areas and ordered reticular motifs have offered a platform for achieving disruptive successes in divisional fields. Great progress in exploring the linear and nonlinear optical features of MOFs has been achieved, yet third‐order optical nonlinearities in two‐dimensional (2D) MOFs have rarely been studied. Here, a broadband nonlinear optical amplitude modification and phase shift are demonstrated in a few‐layer nickel‐p‐benzenedicarboxylic acid MOF (Ni‐MOF). The calculated bandgap of Ni‐MOF decreases from 3.12 eV to 0.85 eV as the doping of Ni ions increases, indicating the ability of this material to be used for optical amplitude modulation from the visible to the near‐infrared region, which is experimentally confirmed via a Z‐scan technique. The determined third‐order optical nonlinearities resemble those of other low‐dimensional nonlinear optical materials, suggesting the wide potential of Ni‐MOF for application in optoelectronics. As an example, a Ni‐MOF‐based saturable absorber was implemented into fiber resonators to demonstrate its broadband mode‐locking operations. A femtosecond laser pulse was readily obtained in the telecommunication wavelength window in an integrated all‐fiber resonator. Considering the chemical compatibility and rich variability, these primary investigations pave the way towards advanced photonics based on multifeature MOF materials.

中文翻译:

超薄金属有机框架:用于超快光子学的新兴宽带非线性光学材料

具有纳米级空隙空间,大表面积和有序网状图案的结晶性多孔金属有机框架(MOF)为在分裂领域取得突破性成功提供了平台。在探索MOF的线性和非线性光学特性方面已经取得了巨大进展,但是很少研究二维(2D)MOF中的三阶光学非线性。此处,在几层镍p中演示了宽带非线性光学幅度修改和相移-苯二甲酸MOF(Ni-MOF)。Ni-MOF的计算带隙随着Ni离子掺杂的增加而从3.12 eV降低到0.85 eV,这表明该材料具有用于从可见光到近红外区域进行光幅度调制的能力,这是通过实验确定的Z扫描技术。所确定的三阶光学非线性类似于其他低维非线性光学材料,这表明Ni-MOF在光电中的应用具有广阔的潜力。例如,在光纤谐振器中采用了基于Ni-MOF的可饱和吸收器,以演示其宽带锁模操作。飞秒激光脉冲很容易在集成全光纤谐振器的电信波长窗口中获得。考虑到化学相容性和丰富的变异性,
更新日期:2018-06-17
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