10 mW of THz Power Using Photoconductive Connected Array Source Excited by a 515 nm Laser at 91 MHz Repetition Rate
M.D. Huiskes (TU Delft - Tera-Hertz Sensing)
M. Khalili (Ruhr-Universität Bochum)
J. Bueno (TU Delft - Electronics)
N. Llombart (TU Delft - Tera-Hertz Sensing)
P.M. Sberna (TU Delft - Tera-Hertz Sensing)
C.J. Saraceno (Ruhr-Universität Bochum)
A. Neto (TU Delft - Tera-Hertz Sensing)
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Abstract
We report the highest THz power ever achieved from photoconductive antennas. This result is obtained by employing a photoconductive connected array. Such arrays have previously shown to radiate efficiently when excited by a 780 nm laser source, but their scalability is constrained by the limited optical power available at this wavelength. In this work, we design a 361-element photoconductive connected array specifically optimized for 20 W of 515 nm green laser excitation, and demonstrate a record-high THz power of ~10 mW using this new device.
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File under embargo until 14-07-2026