Terahertz (THz) waves and THz technologies have gradually opened a new style for communications, cloud-based storage/computing, information contest, and medical tools. With the advancement of THz technologies, studies on THz nonlinear optics have emerged, achieving considerable breakthroughs in both physics and technology.
However, studies on the THz Kerr effect (TKE) cannot support such a fascinating blueprint yet. In the literature, TKE results are either feeble or unstable in the complicated application occasions.
In a new paper published in Light: Science & Applications, a team of scientists, led by Professor Qiang Wu, Yao Lu and Jingjun Xu from The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin, China, and co-workers have utilized a new light-matter interaction mechanism through stimulated phonon polaritons (SPhPs), and demonstrated a giant TKE in a chip-scale lithium niobate Fabry-Pérot microcavity.
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