Renk, Karl Friedrich and Rogl, Andreas and Stahl, Benjamin Ingo and Meier, Alexander and Koschurinov, Y. and Pavel'ev, D. and Ustinov, V. and Zhukov, A. and Maleev, N. and Vasilyev, A. (2006) Semiconductor-Superlattice Frequency Mixer For Detection of Submillimeter Waves. International Journal of Infrared and Millimeter Waves 27 (3), pp. 373-380.
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We report on a GaAs/AlAs superlattice frequency mixer for detection of submillimeter waves. The mixer is based on the nonlinear miniband transport giving rise to domains excited under the action of a microwave field. We designed the mixer for broadband operation (300–600 GHz). For studying basic properties, we investigated the mixer as a harmonic mixer in 15th order to detect radiation at a radio frequency (RF) near 300 GHz using local oscillator (LO) radiation of a frequency near 20 GHz. We reached a noise equivalent power (NEP) of about 10 fW/Hz. We also show that the use of the superlattice mixer together with a superlattice frequency multiplier allows to realize a superlattice-based free-space transmission line for submillimeter waves.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Karl F. Renk|
|Projects:||Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht|
|Keywords:||harmonic mixer; semiconductor superlattice; submillimeter waves|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 21:00|