Waveguide heterodyne mixers at THz-frequencies
superconducting hot electron bolometers on 2-m63m [2-mym] Si3N4 membranes for GREAT and CONDOR
dc.contributor.author | Muñoz Pradas, Pedro Pablo | |
dc.date.accessioned | 2010-10-12T18:23:18Z | |
dc.date.available | 2010-10-12T18:23:18Z | |
dc.date.issued | 2007 | |
dc.identifier.uri | http://hdl.handle.net/11858/00-1735-0000-0001-30DF-1 | |
dc.description.abstract | Design and performance of waveguide mixers at 1.4 THz and 1.9 THz based on NbTiN phonon-cooled hot electron bolometers (HEB) fabricated on a 2 æm thick Si_3N_4 membrane. The membrane is bonded to a silicon frame in the mixer block using a flip chip process. Simulated RF coupling is compared with experimental results, showing good agreement. Receiver noise temperature measurements show uncorrected values of 1600 K at 1.4 THz and 2100 K at 1.9 THz, both at 1.5 GHz intermediate frequency. Device cooling on the membrane seems not to be problematic. The mixers are used in receivers for SOFIA (GREAT & CONDOR) and APEX (CONDOR). | |
dc.format.extent | 153 S. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | deu | |
dc.publisher | Univ. Köln | |
dc.rights.uri | http://e-docs.geo-leo.de/rights | |
dc.subject.ddc | 523 | |
dc.subject.gok | TBG 000 | |
dc.title | Waveguide heterodyne mixers at THz-frequencies | |
dc.title.alternative | superconducting hot electron bolometers on 2-m63m [2-mym] Si3N4 membranes for GREAT and CONDOR | |
dc.type | monograph | |
dc.subject.gokverbal | Infrarot-Astronomie | |
dc.identifier.doi | 10.23689/fidgeo-89 | |
dc.identifier.ppn | 537918817 | |
dc.identifier.urn | urn:nbn:de:hbz:38-20218 | |
dc.type.version | publishedVersion | |
dc.relation.collection | Astronomie, Astrophysik, Weltraumforschung | |
dc.description.type | thesis |