Numerical simulation of terahertz generation and detection based on ultrafast photoconductive antennas
文献类型：会议论文
| 作者 | FanWen-Hui
|
| 出版日期 | 2011 |
| 会议名称 | international symposium on photoelectronic detection and imaging 2011: terahertz wave technologies and applications |
| 会议日期 | may 24, 2011 - may 26, 2012 |
| 会议地点 | beijing, china |
| 关键词 | Terahertz photo-carrier space-charge screening photoconductive antenna |
| 页码 | 81950k |
| 通讯作者 | fan wen-hui |
| 英文摘要 | the numerical simulation of terahertz generation and detection in the interaction between femtosecond laser pulse and photoconductive material has been reported in this paper. the simulation model based on the drude-lorentz theory is used, and takes into account the phenomena that photo-generated electrons and holes are separated by the external bias field, which is screened by the space-charge field simultaneously. according to the numerical calculation, the terahertz time-domain waveforms and their fourier-transformed spectra are presented under different conditions. the simulation results indicate that terahertz generation and detection properties of photoconductive antennas are largely influenced by three major factors, including photo-carriers' lifetime, laser pulse width and pump laser power. finally, a simple model has been applied to simulate the detected terahertz pulses by photoconductive antennas with various photo-carriers' lifetimes, and the results show that the detected terahertz spectra are very different from the spectra radiated from the emitter. |
| 收录类别 | EI ; CPCI |
| 产权排序 | 1 |
| 会议主办者 | chinese society of astronautics (cas) |
| 会议录 | proceedings of spie - the international society for optical engineering
 |
| 会议录出版者 | spie |
| 会议录出版地 | p.o. box 10, bellingham, wa 98227-0014, united states |
| 语种 | 英语 |
| ISSN号 | 0277-786x |
| 源URL | [http://ir.opt.ac.cn/handle/181661/20184]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 推荐引用方式 GB/T 7714 | FanWen-Hui. Numerical simulation of terahertz generation and detection based on ultrafast photoconductive antennas[C]. 见:international symposium on photoelectronic detection and imaging 2011: terahertz wave technologies and applications. beijing, china. may 24, 2011 - may 26, 2012. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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