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