Artificial semiconductor heterostructures played a pivotal role in modern electronic and photonic technologies, providing a highly effective means for the manipulation and control of carriers, from the visible to the far-infrared, leading to the development of highly efficient devices like sources, detectors and modulators. The discovery of graphene and the related fascinating capabilities have triggered an unprecedented interest in devices based on inorganic two-dimensional (2D) materials. Amongst them, black phosphorus (BP) recently showed an extraordinary potential in a variety of applications across micro-electronics and photonics. With an energy gap between the gapless graphene and the larger gap transition metal dichalcogenides, BP can form the basis for a new generation of high-performance photonic devices that could be specifically engineered to comply with different applications, like transparent saturable absorbers, fast photocounductive switches and low noise photodetectors, exploiting its peculiar electrical, thermal and optical anisotropy. This paper will review the latest achievements in black-phosphorus-based THz photonics and discuss future perspectives of this rapidly developing research field.

中文翻译：

---

基于黑磷和相关混合材料的光子器件

人造半导体异质结构在现代电子和光子技术中起着举足轻重的作用，为从可见光到远红外的载流子的操纵和控制提供了一种高效的手段，从而导致了诸如光源，检测器和调制器之类的高效设备的发展。 。石墨烯的发现和相关的引人入胜的功能引发了对基于无机二维（2D）材料的设备的前所未有的兴趣。其中，黑磷（BP）最近在微电子和光子学的各种应用中显示出非凡的潜力。在无间隙石墨烯和较大间隙的过渡金属二卤化碳之间存在能隙，BP可以利用其独特的电，热和光学各向异性，为新一代高性能光子器件奠定基础，这些器件可以经过专门设计以适应不同的应用，例如透明的可饱和吸收体，快速的光导开关和低噪声光电探测器。本文将回顾基于黑磷的太赫兹光子学的最新成就，并讨论这个快速发展的研究领域的未来前景。