Photonics Research, 2016, 4 (3): 03000A36, Published Online: Sep. 29, 2016
Photoconductive devices for terahertz pulsed spectroscopy: a review [Invited] Download: 711次
Spectroscopy Spectroscopy terahertz terahertz Far infrared or terahertz Far infrared or terahertz Photoconductive materials Photoconductive materials
Abstract
Photoconductive switches were the key components that allowed the generation and detection of coherent broadband electromagnetic pulses at terahertz frequencies, opening the possibility for performing spectroscopy and, therefore, measuring complex dielectric properties of materials in this band, which was mostly unexplored. In this paper, we present a brief introduction to the operation principles of these devices. Subsequently, we present a review of the current state-of-the-art in this field and discuss the challenges to be faced in future development of these devices.
E. Castro-Camus, M. Alfaro. Photoconductive devices for terahertz pulsed spectroscopy: a review [Invited][J]. Photonics Research, 2016, 4(3): 03000A36.