期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
硫化钼锁模激光器研究进展
1
作者 孟路平 徐慧 +4 位作者 邹淑珍 王令武 史萌 苏富芳 张玲 《激光与红外》 CAS CSCD 北大核心 2018年第8期939-944,共6页
新型的硫化钼(MoS_2)可饱和吸收体由于具有宽带可饱和吸收特性等优点,在被动锁模激光领域具有广泛的应用。本文对硫化钼可饱和吸收体的不同制备方法和锁模的关键参数进行了总结、对基于硫化钼吸收体的锁模激光特性进行了综述,并指出其... 新型的硫化钼(MoS_2)可饱和吸收体由于具有宽带可饱和吸收特性等优点,在被动锁模激光领域具有广泛的应用。本文对硫化钼可饱和吸收体的不同制备方法和锁模的关键参数进行了总结、对基于硫化钼吸收体的锁模激光特性进行了综述,并指出其发展趋势。 展开更多
关键词 硫化钼 可饱和吸收 被动锁模 固体和光纤激光器
下载PDF
U-shaped micro-groove fiber based on femtosecond laser processing for humidity sensing
2
作者 FU Gui MA Li-li +1 位作者 su fu-fang and SHI Meng. 《Optoelectronics Letters》 EI 2018年第3期212-215,共4页
A novel optical fiber sensor with a U-shaped micro-groove structure ablated by femtosecond laser on single-mode fiber for measuring air relative humidity(RH)is reported in this paper.In order to improve the accuracy o... A novel optical fiber sensor with a U-shaped micro-groove structure ablated by femtosecond laser on single-mode fiber for measuring air relative humidity(RH)is reported in this paper.In order to improve the accuracy of sensor,a graphene oxide(GO)/polyvinyl alcohol(PVA)composite film is coated on the surface of micro-groove structure.In the U-shaped micro-groove structure,the remaining core and micro-cavity in the micro-groove make up two major optical propagation paths,forming a Mach-Zehnder interferometer(MZI).The sensor has a good linear response within the RH range of 30%—85%,and the maximum sensitivity can reach 0.638 1 nm/%RH.The effect of temperature on the overall performance of the humidity sensor is also investigated.As a new type of all-fiber device,the sensor shows excellent sensitivity and stability. 展开更多
关键词 U-SHAPED micro-groove FIBER FEMTOSECOND LASER PROCESSING for humidity SENSING
原文传递
Impact of the dielectric duty factor on magnetic resonance in Ag-SiO_(2)-Ag magnetic absorber
3
作者 WANG Yu-ying LI Jing +4 位作者 su fu-fang suN Xue-bo ZHANG Xu LI Yan ZHANG Xia 《Optoelectronics Letters》 EI 2021年第1期5-11,共7页
Magnetic absorber in optical frequency can be fulfilled through metamaterials designing. Therein, magnetic resonance in metal-dielectric-metal metasurfaces can be manipulated conveniently, and studying the parameters ... Magnetic absorber in optical frequency can be fulfilled through metamaterials designing. Therein, magnetic resonance in metal-dielectric-metal metasurfaces can be manipulated conveniently, and studying the parameters impacts is the primary for applications. In this work, through changing the grating width and the thickness of silica, the magnetic resonance modes have been studied, the conditions of the phase change zone from magnetic resonance(MR) to Fabry-Pérot(FP) are given out in Ag-SiO_(2)-Ag grating magnetic metasurfaces. The results indicate that the MR mode in metal-dielectric-metal configuration is mainly decided on the dielectric duty factor other than the sole behaviors of the thickness of dielectric and size of nanostructures. The physical mechanism is elucidated through simulated electromagnetic field distributions using finite difference time domain(FDTD) solution, and numerical analysis of effective refraction index of Ag-SiO_(2)-Ag magnetic metasurfaces. This study may prompt development of metamaterials in basic research in condensed physics and in optical devices applications. 展开更多
关键词 DIELECTRIC MAGNETIC ABSORBER
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部