激光与光电子学进展, 2019, 56 (19): 192302, 网络出版: 2019-10-14
余弦-高斯光束在太赫兹平行平板波导中的传输研究 
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Cos-Gaussian Beams Propagating Inside Terahertz Parallel-Plate Waveguides
图 & 表
图 3. 三维数值模拟的场分布图。(a) 0.35 THz下余弦-高斯光束在有限长PPWG中传输的场分布;(b)不同传输距离处横截面的电场强度分布图
Fig. 3. Field distribution in three-dimensional numerical simulation. (a) Field distribution of cos-Gaussian beam propagating in finite-length PPWG at frequency of 0.35 THz; (b) electric-field intensity distribution of cross-sections at different propagating distances
图 4. 振幅和相位的分析结果。 (a)不同z值下,当y=0 时x方向上的归一化电场强度分布;(b)理论与模拟值之间的RMSE;(c)不同z值下,当y=0 时x方向上的相位分布;(d) z轴处理论和模拟的相位结果对比
Fig. 4. Analysis results of amplitude and phase. (a) Normalized electric-field intensity distribution in x direction for y=0 at different z values; (b) RMSE between theoretical and simulated results; (c) phase distribution of electric field in x direction for y=0 at different z values; (d) comparison between theoretical and simulated results of phase distribution in z-axis
表 1不同频率下z轴不同传输距离处的相位模拟数据与理论的差值
Table1. Difference in phase data between simulated and theoretical results at different propagating distances of z-axis at different frequencies
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吴登明, 滕达, 曹清, 白丽华, 李哲. 余弦-高斯光束在太赫兹平行平板波导中的传输研究[J]. 激光与光电子学进展, 2019, 56(19): 192302. Dengming Wu, Da Teng, Qing Cao, Lihua Bai, Zhe Li. Cos-Gaussian Beams Propagating Inside Terahertz Parallel-Plate Waveguides[J]. Laser & Optoelectronics Progress, 2019, 56(19): 192302.
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