摘要
介绍了用微波分光计测量手征特异材料圆二色性的实验,利用微波分光计对双层交叉十字型结构的手征特异材料进行了测量,发现其具有明显的圆二色性;再通过电磁场仿真设计软件对其表面电流等进行分析;进而利用可变频率的矩形喇叭天线系统在一定频带范围内精确测量相关性质,验证了微波分光计观测到的结果.本实验丰富了微波分光计实验项目的教学内容,并让本科生在学习大学物理实验课程中接触到物理学前沿的研究工作,有益于培养学生的科学研究能力.
We present a microwave spectrometer experiment to measure the circular dichroism properties of chiral meta-materials. Using the microwave spectrometer, the circular dichroism properties of chiral meta-materials are measured to find the significant circular dichroism properties. Then using the electromagnetic field simulation software, the surface current is analyzed. With the rectangular horn antenna system with variable frequency, the related properties can be accurately measured in a certain frequency range and the result of microwave spectrometer measurement is validated. The experiment enriches teaching content of microwave spectrometer experimental projects and provides opportunities for undergraduates to contact the frontier of physic researches, which are beneficial to cultivate students＇scientific research capabilities.
出处
《大学物理》
北大核心
2014年第8期51-54,共4页
College Physics
关键词
微波分光计
手征特异材料
圆二色性
microwave spectrometer
chiral meta-materials
circular dichroism properties
