caa a22 4500 463215079 CHVBK 20180405153154.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s00339-007-3909-9 doi (NATIONALLICENCE)springer-10.1007/s00339-007-3909-9 Performance optimization of GaAs-based photomixers as sources of THz radiation [Elektronische Daten] [P. Kordoš, M. Marso, M. Mikulics] The performance optimization of GaAs-based photomixers using novel device structures is reported. Low-temperature grown (LT) GaAs devices with recessed interdigitated finger contacts, which improve the electric field distribution in the active region, were investigated. Further, the devices with an enhanced mixing area using finger contacts integrated into the coplanar stripline were experimentally verified. The output power of such photomixers was twice of that with conventional surface contacts. High-energy nitrogen implanted GaAs was used as an alternative to LT GaAs, and a further increase of the output power was observed. Measured power level of 2.6μW at 850GHz was higher than that reported before for any photomixer in the THz region. Springer-Verlag, 2007 Kordoš P. Institute of Electrical Engineering, Slovak Academy of Sciences, 84104, Bratislava, Slovakia aut Marso M. Institute of Bio- and Nanosystems, Research Center Jülich, 52425, Jülich, Germany aut Mikulics M. Institute of Bio- and Nanosystems, Research Center Jülich, 52425, Jülich, Germany aut Applied Physics A Springer-Verlag 87/3(2007-06-01), 563-567 0947-8396 87:3<563 2007 87 339 https://doi.org/10.1007/s00339-007-3909-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-3909-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kordoš P. Institute of Electrical Engineering, Slovak Academy of Sciences, 84104, Bratislava, Slovakia aut NATIONALLICENCE 700 1- Marso M. Institute of Bio- and Nanosystems, Research Center Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 700 1- Mikulics M. Institute of Bio- and Nanosystems, Research Center Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 87/3(2007-06-01), 563-567 0947-8396 87:3<563 2007 87 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer