Antimonene: a long-term stable two-dimensional saturable absorption material under ambient conditions for the mid-infrared spectral region
We experimentally demonstrate a long-term stable two-dimensional saturable absorption material under ambient conditions—multi-layer antimonene feasible for the mid-infrared spectral region—for the first time to our knowledge. The multi-layer antimonene material prepared using a liquid-phase exfoliation method was coated on a quartz/CaF2 for characterizations and an Au mirror as a reflection-type saturable absorber (SA) device. It has a modulation depth of 10.5%, a saturation peak intensity of 0.26 GW/cm2, and a non-saturation loss of 19.1% measured at 2868.0 nm using the typical power-dependent method. By introducing the SA device into a linear-cavity Ho3+/Pr3+-codoped fluoride fiber laser at 2865.0 nm, stable Q-switched pulses were obtained. It generated a maximum output power of 112.3 mW and pulse energy of 0.72 μJ, while the shortest pulse duration and largest repetition rate were 1.74 μs and 156.2 kHz, respectively. The long-term stability of the SA device was also checked using the same laser setup within 28 days. The results indicate that multi-layer antimonene is a type of promising long-term stable SA material under ambient conditions that can be applied in the mid-infrared spectral region.
基金项目：National Natural Science Foundation of China (NSFC)10.13039/501100001809 (61722503, 61435003, 61421002); Open Fund of Science and Technology on Solid-State Laser Laboratory; Fundamental Research Funds for the Central Universities (ZYGX2016J068); International Scientific Cooperation Project of Sichuan Province (2017HH0046); National Key R&D Program of China (YS2018YFB110012); Natural Science Foundation of Zhejiang Province10.13039/501100004731 (LQ18A040004).
Xiangling Tian：State Key Laboratory of Luminescent Materials and Devices and School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
Ying Gao：State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China
Rongfei Wei：Department of Physics, Zhejiang Normal University, Jinhua 321004, China
Jianfeng Li：State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, Chinae-mail: email@example.com
Jianrong Qiu：State Key Laboratory of Luminescent Materials and Devices and School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, ChinaState Key Laboratory of Modern Optical Instrumentation, College of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, Chinae-mail: firstname.lastname@example.org
Yong Liu：State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China
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Hongyu Luo, Xiangling Tian, Ying Gao, Rongfei Wei, Jianfeng Li, Jianrong Qiu, and Yong Liu, "Antimonene: a long-term stable two-dimensional saturable absorption material under ambient conditions for the mid-infrared spectral region," Photonics Research 6(9), 900-907 (2018)