中国激光, 2019, 46 (6): 0614009, 网络出版: 2019-06-14
太赫兹辐射的时域光谱单发探测 下载: 1268次
Single-Shot Time-domain Spectrum Detection for Terahertz Radiation
太赫兹技术 太赫兹辐射 太赫兹波探测 超快激光技术 光谱编码 空间编码 terahertz technology terahertz radiation terahertz wave detection ultrafast laser technique spectral encoding spatial encoding
摘要
随着大功率激光技术的发展,由其驱动产生的太赫兹辐射受到了广泛关注。然而,大功率激光装置的重复频率低,测量其产生的太赫兹辐射的难度较大。采用时域光谱单发探测技术可以克服这一探测难点,通过单次测量就能得到太赫兹辐射的电场波形信息。回顾了太赫兹辐射时域光谱单发探测的相关研究工作进展。根据频率-时间编码和空间-时间编码两种不同的原理,详细介绍了啁啾脉冲光谱编码探测和空间-时间编码探测等测量技术,并对各个测量技术的特点和参数进行了对比,最后对太赫兹辐射的单发探测作了总结和展望。
Abstract
With the development of high-power lasers, terahertz (THz) radiation driven by high-power lasers has received extensive attention. However, it is difficult to measure the terahertz radiation produced by high-power laser devices because of their low repetition rate. This can be solved by using a single-shot time-domain spectrum detection technique. Using this technique, the electric field waveform information of terahertz radiation can be obtained in a single measurement. In this study, we review the research progress with respect to the single-shot time-domain spectrum detection for THz radiation. Based on frequency-time encoding and space-time encoding, we introduce spectral encoding detection using a chirped pulse, space-time encoding detection, and other techniques. In this review, the characteristics and parameters of each measurement technique are compared. Finally, we summarize and discuss the future prospects of single-shot detection for THz radiation.
肖一, 白亚, 刘鹏. 太赫兹辐射的时域光谱单发探测[J]. 中国激光, 2019, 46(6): 0614009. Yi Xiao, Ya Bai, Peng Liu. Single-Shot Time-domain Spectrum Detection for Terahertz Radiation[J]. Chinese Journal of Lasers, 2019, 46(6): 0614009.