| Temporal and Spectral Properties of Subcycle THz Pulses in Near-Field Zone |
| |
| 作者姓名： | 杨玉平 严伟 徐新龙 施宇蕾 汪力 |
| |
| 作者单位： | LaboratoryofOpticalPhysics,InstituteofPhysicsandCenterforCondensed}flatterPhysics,ChineseAcademyofSciences,Beijing100080 |
| |
| 摘 要： | In a novel generation and detection configuration of terahertz (THz) radiation, we investigate experimentally and numerically the properties of sub-cycle THz pulses in the near field. It is found that the sub-cycle THz pulses experience significant spectral and temporal deformation in the near-field zone. The variations of both the pulse waveform and spectral distribution of the THz electric field are clearly observed in our experiments when the spot size of source is changed. Numerical simulations based on Gaussian distribution are performed to explain the details of the data and lead to an excellent agreement with the experimental results.
|
| 关 键 词： | 近场区域 时间形变 光谱特征 亚循环太赫脉冲 电磁波 |
| 本文献已被 维普 等数据库收录！ |
|
