What is it about?
Generation of terahertz radiation is a challenge due to the frequency gap between photonics and electronics. One of the most popular methods of broadband terahertz radiation generation in laser-created air plasma is based on the bulky and expensive femtosecond laser systems. In this article, we demonstrate that the same result can be achieved by using the compact and less expensive tabletop size subpicosecond lasers.
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Why is it important?
The results of our experiment and numerical modelling indicate that the compact, mobile and comparably inexpensive terahertz radiation sources can be created using the proposed method. Development of such radiation sources is very important due to their multiple applications in upcoming wireless telecommunications techniques, time-resolved terahertz spectroscopy, remote identification of hazardous materials and explosives, security screening, etc.
Read the Original
This page is a summary of: Terahertz and far infrared radiation generation in air plasma created by bichromatic subpicosecond laser pulses, Applied Physics Letters, February 2024, American Institute of Physics,
DOI: 10.1063/5.0188581.
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