Three Calculation Methods of the WGM Cylindrical Cavity Diameter

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Li, Zhou^1 ; Guangyang, Xu^1 ; Jiufu, Chen^1 ; Lisha, Wang^1 ; Yao, Zhang^1

Zhaotong University, Collegel of Physics and Information Engineering, Zhaotong

657000, China^1

关键词: Approximate formulas;    Circular cavity;    Cylindrical cavities;    First-order approximations;    Mode fields;    Resonance peak;    Second-order approximation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/5/052012/pdf
DOI  :  10.1088/1757-899X/563/5/052012

来源: IOP

【 摘 要 】

WGM mode in cylindrical cavity can be rapidly calibrated with analytical approximate formulas based on cylindrical micro-cavity WGM resonance peaks position. On this basis, the diameter of circular cavity can be calculated by applying the three methods, which are the first-order approximation method, the second-order approximation method and mode field radius. When comparing the results which are got from the three methods with the actual geometric diameter, we find that the deviation is within 3%, 2%, 1% respectively. As a result, the diameter of circular cavity can be correctly worked out by making use of these three ways mentioned.