球微腔介质的回廊模近似解  

Analytical Expressions of Whispering Gallery Modes in a Spherical Dielectric Microcavity

作　　者：张磊[1] 蔡志平[1] 

机构地区：[1]厦门大学物理学系,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2004年第4期483-486,共4页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(69878023;60277026);福建省重大基金 (2 0 0 2F0 1 1 )资助

摘　　要：从球对称边界条件出发,分别讨论微球内部光场的两类重要的传播模式横电场(TE)和横磁场(TM)回廊模(WGMs),并导出其对应的特征方程.运用大球近似下的特征方程解,计算低阶WGMs模的谐振波长,很好地解释掺铒氟化物玻璃微球中所观察到的发射光谱.Based on the continuous boundary conditions of a dielectric sphere,the two specific types of guiding Whispering Gallery ModesTE, TM modes in the microsphere were discussed. The corresponding characteristic equations were deduced. In the case of large microsphere, the characteristic equations were analytically solved, and applied to calculate the low-order resonance wavelengths. The theoretical prediction was in good accordance with the emission spectrum from an ErZBLALiP microsphere.

关 键 词：回廊模 掺铒氟化物玻璃 微球 特征方程近似解 光场 横电场 横磁场 球形谐振腔 

分 类 号：TN629.1[电子电信—电路与系统]