Imaging with modular linear arrays of cryogenic Nb microbolometers

E. N. Grossman; C. R. Dietlein; J. E. Bjarnason; M. Ramirez; M. Leivo; J. A. Penttila; P. Helisto; A. Luukanen

doi:10.1117/12.784645

18 April 2008 Imaging with modular linear arrays of cryogenic Nb microbolometers

E. N. Grossman, C. R. Dietlein, J. E. Bjarnason, M. Ramirez, M. Leivo, J. A. Penttila, P. Helisto, A. Luukanen

Proceedings Volume 6948, Passive Millimeter-Wave Imaging Technology XI; 694806 (2008) https://doi.org/10.1117/12.784645
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

We present ultrawideband imagery obtained with modular, 8-element, superconducting Nb microbolometer arrays. Conically scanned images are presented and compared with raster-scanned images obtained on the same arrays and from similar NbN arrays at VTT. Statistical data on detector non-uniformity, and methods for mitigating and compensating it are described. Low-noise readout is accomplished with room-temperature electronics using the transimpedance scheme of Pentilla et al. Characterization of spatial resolution, noise-equivalent temperature difference, and spectral response is done using metrology tools - standard targets, mm-wave blackbodies, and variable filters - that have been developed at NIST for this purpose.

Citation Download Citation

E. N. Grossman, C. R. Dietlein, J. E. Bjarnason, M. Ramirez, M. Leivo, J. A. Penttila, P. Helisto, and A. Luukanen "Imaging with modular linear arrays of cryogenic Nb microbolometers", Proc. SPIE 6948, Passive Millimeter-Wave Imaging Technology XI, 694806 (18 April 2008); https://doi.org/10.1117/12.784645

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available