A team of researchers from Frankfurt University, Ferdinand-Braun Institute (both Germany) and Vilnius University (Lithuania) has managed to significantly improve the performance of TeraFETs, using GaN-based high-electron mobility transistors (HEMTs). The sensitivity of the new devices was more than twofold higher than with previous GaN terahertz detectors.
The authors employed a TeraScan 1550 from TOPTICA Photonics as a precisely tunable terahertz source in order to characterize the new detectors over a broad frequency range.
Download the paper "A High-Sensitivity AlGaN/GaN HEMT Terahertz Detector With Integrated Broadband Bow-Tie Antenna", IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, VOL. 9, NO. 4, JULY 2019
TOPTICA’s TeraScan platforms are well-established “TopSeller” configurations for frequency-domain terahertz spectroscopy. The TeraScan 1550 sets new benchmarks in terms of terahertz power and dynamic range for demanding applications in Plastic Inspection, Material Research, Gas sensing, and Security.
TOPTICA has been developing and manufacturing high-end laser systems for scientific and industrial applications for 20 years. Our portfolio includes diode lasers, ultrafast fiber lasers, terahertz systems and frequency combs. The systems are used for demanding applications in biophotonics, industrial metrology and quantum technology. TOPTICA is renowned for providing the widest wavelength coverage of diode lasers on the market, providing high-power lasers even at exotic wavelengths.
TOPTICA’s employees take pride in developing customized systems. In close collaboration with several universities and institutes, latest scientific discoveries are frequently incorporated into commercial products. With a global distribution network, TOPTICA provides exceptional service worldwide. With 320 employees TOPTICA earned revenue of 74 million Euro in 2019.
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E-Mail: jan.brubacher@toptica.com
