Chongpei Pan, Qiang Wu, Qi Zhang, Wenjuan Zhao, Jiwei Qi, Jianghong Yao, Chunling Zhang, W. T. Hill, and Jingjun Xu
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-9-9768
We report for the first time the ability to perform time resolved imaging of terahertz (THz) waves propagating within a Fabry-Perot resonator on a LiNbO3 slab. Electro-optic effect is used to record the full spatiotemporal evolution of THz fields inside the resonator. In addition to revealing the real-space behavior, the data further demonstrate the confinement and the standing wave modes of THz in the cavity in frequency domain. The experimental results are in good agreement with numerical simulations. Using the coherent imaging technique to gain real-time information about a resonator system provides a unique path to study the physics of optical cavity.
© 2017 Optical Society of America
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