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| 1 | 3D打印光纤法布里-珀罗腔声发射传感器显示文摘提出一种基于非本征法布里-珀罗腔的新型光纤声发射传感器。采用数字光处理3D打印技术制备声振动敏感膜片,该结构基于灵活的数字模型设计,可一次成型,易于与标准光纤陶瓷插芯表面集成。实验结果表明:所制备的法布里-珀罗传感器具有较高的消光比;该声发射传感器在频率为600 Hz^2.4 kHz时具有较高的灵敏度,在频率为1.6 kHz时,声压灵敏度为2.81 mV/Pa。基于3D打印技术的光纤声发射传感器具有稳定性好、制备工艺简单等优点,在声发射检测领域具有潜在的应用前景。 | 沈诗 魏鹤鸣 王俊 刘奂奂 马章微 陈娜 商娅娜 庞拂飞 | 2020 | 中国激光2020，47，9： | 8 |
| 2 | Immersion graded index optics:theory,design,and prototypes显示文摘Immersion optics enable creation of systems with improved optical concentration and coupling by taking advantage of the fact that the luminance of light is proportional to the square of the refractive index in a lossless optical system.Immersion graded index optical concentrators,that do not need to track the source,are described in terms of theory,simulations,and experiments.We introduce a generalized design guide equation which follows the Pareto function and can be used to create various immersion graded index optics depending on the application requirements of concentration,refractive index,height,and efficiency.We present glass and polymer fabrication techniques for creating broadband transparent graded index materials with large refractive index ranges,(refractive index ratio)^(2)of~2,going many fold beyond what is seen in nature or the optics industry.The prototypes demonstrate 3x optical concentration with over 90%effciency.We report via functional prototypes that graded-index-lens concentrators perform close to the theoretical maximum limit and we introduce simple,inexpensive,design-flexible,and scalable fabrication techniques for their implementation. | Nina Vaidya lav Solgard | 2022 | Microsystems & Nanoengineering2022，8，3： | 0 |
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