This article presents a terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More imaging system using a waveguide with a reflection topology. The system is based on a femtosecond pulse laser, a transceiver, and a silica pipe hollow-core waveguide. Silicon lens, beam splitter or coupler is no more required to manipulate the terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More beam in free space, which makes this system setup more compact and easier to align.
Pan, M., Cassar, Q., Fauquet, F., Humbert, G., Mounaix, P., & Guillet, J. P. (2020). Guided terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More pulse reflectometry with double photoconductive antenna. Applied optics, 59(6), 1641-1647.