Lu Yao, Huang Yibo, Cheng Junkai, Ma Ruobin, Xu Xitan, Zang Yijia, Wu Qiang, Xu Jingjun
Nankai University, Tianjin, China.
Nanophotonics. 2024 Jul 1;13(18):3279-3298. doi: 10.1515/nanoph-2024-0109. eCollection 2024 Aug.
Terahertz (THz) waves have exhibited promising prospects in 6G/7G communications, sensing, nondestructive detection, material modulation, and biomedical applications. With the development of high-power THz sources, more and more nonlinear optical effects at THz frequency and THz-induced nonlinear optical phenomena are investigated. These studies not only show a clear physics picture of electrons, ions, and molecules but also provide many novel applications in sensing, imaging, communications, and aerospace. Here, we review recent developments in THz nonlinear physics and THz-induced nonlinear optical phenomena. This review provides an overview and illustrates examples of how to achieve strong THz nonlinear phenomena and how to use THz waves to achieve nonlinear material modulation.
太赫兹（THz）波在6G/7G通信、传感、无损检测、材料调制和生物医学应用等领域展现出了广阔的前景。随着高功率太赫兹源的发展，人们对太赫兹频率下越来越多的非线性光学效应以及太赫兹诱导的非线性光学现象进行了研究。这些研究不仅展现了电子、离子和分子清晰的物理图像，还在传感、成像、通信和航空航天等领域提供了许多新颖的应用。在此，我们综述太赫兹非线性物理学和太赫兹诱导的非线性光学现象的最新进展。本综述提供了一个概述，并举例说明了如何实现强太赫兹非线性现象以及如何利用太赫兹波实现非线性材料调制。
