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| 基于空间能量分布调制增强和控制太赫兹信号 |
| Terahertz signal enhancement and control based on spatial energy distribution modulation |
| 投稿时间：2020-05-11 |
| DOI：10.3969/j.issn.1005-5630.2020.05.013 |
| 中文关键词: 太赫兹波 空间能量分布 空心金属波导 |
| 英文关键词:terahertz wave spectral energy distribution hollow metal waveguide |
| 基金项目: |
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| 摘要点击次数: 2313 |
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| 中文摘要: |
| 为了有效地对太赫兹波进行增强和连续控制，提出一种通过外部空间干扰调制太赫兹波的空间分布对太赫兹波进行增强和连续控制的方法。通过理论计算对比了未放置和放置空心金属波导的太赫兹波的空间分布，并研究了通过外部空间干扰改变太赫兹波传播路径对太赫兹波空间分布的影响。研究表明，采用改变空心金属波导和激光拉丝相对位置的方法，可以得到连续调控的太赫兹波的空间分布，并且太赫兹波空间分布的最强点能量强度增强了近5.9倍，可为宽带太赫兹波的连续调控提供参考。 |
| 英文摘要: |
| In order to effectively enhance and continuously control terahertz wave, we propose a method of modulating the spatial distribution of terahertz wave through external spatial interference. Firstly, we compare the spatial distribution when placing hollow metal waveguides with that when not placing hollow metal waveguides by means of theoretical calculation. The impact on the spatial distribution of terahertz wave is exhibited when changing the propagation path of terahertz wave under external interference. At the same time, we acquire the spatial distribution of terahertz wave which can be continuously regulated by changing the relative position of hollow metal waveguide and laser filament. The results mentioned above provide a new way for continuous regulation of wideband terahertz wave. The results show that the energy intensity of the strongest point in the spatial distribution of THz wave is increased by 5.9 times, which can provide reference for the continuous regulation of broadband terahertz wave. |
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