The current focus of academia and the telecommunications industry has been shifted to the development of the six-generation (6G) cellular technology, also formally referred to as IMT-2030. Unprecedented applications that 6G aims to accommodate demand extreme communications performance and, in addition, disruptive capabilities such as network sensing. Recently, there has been a surge of interest in terahertz (THz) frequencies as it offers not only massive spectral resources for communication but also distinct advantages in sensing, positioning, and imaging. The aim of this paper is to provide a brief outlook on opportunities opened by this under-exploited band and challenges that must be addressed to materialize the potential of THz-based communications and sensing in 6G systems.

翻译：当前学术界与电信行业的焦点已转向第六代（6G）蜂窝技术的研发，该技术也被正式命名为IMT-2030。6G旨在支持的前所未有的应用不仅对极致通信性能提出需求，还要求实现网络感知等颠覆性能力。近年来，太赫兹（THz）频段引起了广泛关注，因其既为通信提供丰富的频谱资源，又在感知、定位与成像领域具备独特优势。本文旨在简要展望这一尚未充分利用的频段所带来的机遇，以及为在6G系统中实现基于太赫兹的通信与感知潜力而必须应对的挑战。