Photoconductive emitters for pulsed terahertz generation

Conceived over 30 years ago, photoconductive (PC) emitters have proved essential in the development and spread of terahertz technology. Since then, not only have they been used extensively in a wide range of spectroscopic and imaging applications, they have also undergone significant improvements in performance, leading to their use for broadband or non-linear spectroscopy. In this review article, we provide an overview of the literature, highlighting the key milestones in the progression of the PC emitter. We also investigate the future of PC technology and review the existing challenges.

Automated summary

Conceived over 30 years ago, photoconductive (PC) emitters have played a crucial role in the advancement and popularization of terahertz technology. They have been extensively utilized in various spectroscopy and imaging applications, and have undergone significant improvements in performance, making them suitable for broadband or non-linear spectroscopy applications. This review article provides an overview of the literature, highlighting key milestones in the development of PC emitters, as well as discussing the future prospects and existing challenges of PC technology.