太赫兹波调控技术：驾驭太赫兹之光

随着研究的不断深入，太赫兹科学与技术在多个基础研究及工程应用领域的重要地位日益凸显。辐射源、传输与控制及探测感知是太赫兹技术进一步发展需要继续探索的三个重要方面。太赫兹波应用的共同基础是使其与物质发生有效的相互作用以携带信息、传输能量等，实现这些过程往往需要对太赫兹信号的振幅、相位、频率、偏振、波前等电磁特性及自旋角动量、轨道角动量等光子特性在时空维度上进行调控。上述调控可以直接在辐射源处进行，也可以在传输过程中引入额外的功能器件。文章介绍了几种最具代表性的、基于源及器件的太赫兹波调控技术，并总结其基本原理、发展历程及最新进展。太赫兹波调控技术的发展将为太赫兹波的进一步应用奠定坚实的基础。

Technology for terahertz wave manipulation: harnessing the light of terahertz

With the deepening of research, terahertz (THz) science and technology becomes increasingly prominent in many fields for both basic research and engineering applications. Radiation source, transmission and control, detection and sensing are three importantaspects that need to be explored in the further development of THz technology. The common basis of THz wave applications is tomake the effective interaction with the material for carrying information or transmitting power. To implement these processes, weneed to control the electromagnetic parameters like amplitude, phase, frequency, polarization, wavefront and the photonic parameters like spin and orbital angular momentum of THz wave. The above manipulation can be carried out directly at the radiation source or additional functional devices in the transmission process. In this paper, several representative source- and device-based THz manipulation technologies are introduced, and the basic principles, development history and latest progress are summarized. The development of THz manipulation technology will lay a solid foundation for the further application of THz wave.