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应用多光子非线性Compton散射模型和有限时域差分法,对Compton散射对磁化等离子体光子晶体缺陷模密温特性的影响进行了理论分析和数值模拟。结果表明,与Compton散射前的情况相比,Compton散射使低温低频处光子禁带中存在缺陷模的明显度降低,缺陷模频率增大,缺陷模和透射率峰值减小;使高温高频处缺陷模和透射率峰值、缺陷模频率显著增大,禁带宽减小,缺陷模位置向高频方向移动。随着电子密度的增大,散射减小了禁带增大效应和缺陷模减小效应,增强了缺陷模频率增大效应;随着电子密度的降低,散射增强了禁带变窄效应、缺陷模峰值增大效应和缺陷模频率减小效应。利用Compton散射,可实现对缺陷模密温特性的有效控制。
The effects of Compton scattering on the close and in-temperature properties of photon crystal defects in magnetized plasma were analyzed theoretically and numerically by using the multiphoton nonlinear Compton scattering model and the finite difference time-domain method. The results show that the Compton scattering reduces the presence of defect modes in the photonic band gap at low temperature and low frequency, increases the defect mode frequency and decreases the peak value of the defect mode and transmittance compared with that before Compton scattering. Defect mode and transmittance peak, the defect mode frequency increases significantly, the forbidden bandwidth decreases, the defect mode position moves toward the high frequency direction. With the increase of electron density, the scattering reduces the effect of forbidden band increasing and the defect mode reducing, and enhances the increasing effect of the defect mode frequency. As the electron density decreases, the scattering enhances the band gap narrowing effect and the defect Modulus peak increase effect and defect mode frequency reduction effect. The use of Compton scattering, can achieve effective control of the defect mode temperature and temperature characteristics.