Study of NbN Ultra-thin Films for THz Hot-electron Bolometers
Paper i proceeding, 2014
Hot-electron bolometer (HEB) mixers based on
superconducting ultra-thin NbN films are largely used for THz spectroscopy for space and ground-based observations. Performance of the HEB mixers directly depends on the details of the structure and composition of thin film surface, as well as the nitrogen composition and its depth distribution. In this work, we present the study of the composition and the surface oxidation state of NbN films grown at two different temperatures and of 5 and 10 nm thickness.
thin films
Hot-electron bolometers
surface analysis
NbN
Författare
Victor P. Afanas'ev
Sascha Krause
Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling
Alexander V. Lubenchenko
Alexander A. Batrakov
Vincent Desmaris
Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling
Alexey Pavolotskiy
Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling
Victor Belitsky
Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling
25th International Sympsoium on Space Terahertz Technology, ISSTT 2014; Moscow; Russian Federation; 27 April 2014 through 30 April 2014
141-143
Ämneskategorier
Bearbetnings-, yt- och fogningsteknik
Övrig annan teknik
Den kondenserade materiens fysik
Infrastruktur
Onsala rymdobservatorium
Nanotekniklaboratoriet