Optical Waveguide Formed in Yb：KLu（WO4）2 Crystal by 6.0 MeV O^＋ Implantation

A planar optical waveguide is formed in monoclinic double rare-earth-tungstate laser crystal Yb：KLu（WO4）2 by 6.0 Me V oxygen ion implantation with a dose of 2 × 10^16 ions/cm^2 at room temperature. Subsequently, annealing at 300℃ for an hour in air is performed on the sample to decrease colour centres to improve the thermal stability of the waveguide. The refractive index profiles of the waveguide are reconstructed by an effective refractive index method. Dark modes of the waveguide are observed at wavelengths of 633 nm and 1539 nm. TRIM＇98 is used to simulate the damage profile caused by the implantation process. It is found that the refractive index change may be mainly due to the damage induced by the nuclear energy loss.     

基于lMU-4型多传感器模块的刷子的移动分析

将刷子放置在振动的水平表面，刷子可能会开始移动。本文基于IMU-4型多传感器模块，分析了刷子的移动及各种因素对移动规律的影响。     

《能量转换与应用》课程建设的探索与思考

为了培养具有中国矿业大学能源行业特色及物理学科优势的高素质创新型人才,在应用物理学及光电信息科学与工程专业的新培养方案中增设了“能量转换与应用”课程,通过教学实践对该门课程教学内容及教学模式的建设进行了理论探索与思考.