论文部分内容阅读
应用有效折射率微扰法结合二维/三维平面波方法研究了施主和受主缺陷型H1微腔的性质,使用修正后的有效折射率可以准确地计算微腔的腔模频率,与三维全矢量时域有限差分法的计算结果很相近.对于施主型H1微腔,以介质带边为匹配标准修正的有效折射率计算的微腔腔模频率误差最小,而对于受主型H1微腔,匹配标准则应设置为中间带.有效折射率微扰法既可以将计算的维度从三维降到二维,大大减少计算所需的计算机内存和时间,又可以保持计算结果的准确性,这对于光子晶体微腔的广泛应用具有非常重要的价值.
The effective refractive index perturbation method combined with two-dimensional / three-dimensional plane wave method was used to study the properties of donors and acceptor-deficient H1 microcavities. The modified effective refractive index can accurately calculate the cavity mode frequency of microcavities, Finite difference time-domain (FDTD) results are very similar to those of the donor-type H1 microcavity, which is the smallest calculated for the effective refractive index corrected by the matching band edge of the media, The standard should be set to the middle zone.The effective refractive index perturbation method can not only reduce the calculated dimension from three dimensions to two dimensions, greatly reduce the computer memory and time required for the calculation, but also keep the accuracy of the calculation result, The wide application of crystal microcavities is of great importance.