Study of NbN Ultra-thin Films for THz Hot-electron Bolometers
Paper in proceedings, 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

Author

Victor P. Afanas'ev

Sascha Krause

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Alexander V. Lubenchenko

Alexander A. Batrakov

Vincent Desmaris

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Alexey Pavolotskiy

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Victor Belitsky

Chalmers, Earth and Space Sciences, Advanced Receiver Development

25th International Sympsoium on Space Terahertz Technology, ISSTT 2014; Moscow; Russian Federation; 27 April 2014 through 30 April 2014

141-143

Subject Categories

Manufacturing, Surface and Joining Technology

Other Engineering and Technologies not elsewhere specified

Condensed Matter Physics

Infrastructure

Onsala Space Observatory

Nanofabrication Laboratory

More information

Created

10/7/2017