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|Author(s):||Erich N. Grossman; Charles Dietlein; Jon E. Bjarnason; Mabel Ramirez; M. Leivo; J. A. Penttila; P. Helisto; A. Luukanen;|
|Title:||Imaging with modular linear arrays of cryogenic Nb microbolometers|
|Published:||March 17, 2008|
|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.|
|Conference:||SPIE - The International Society for Optical Engineering, Defense & Security Symposium|
|Pages:||pp. 694806-1 - 694806-10|
|Dates:||March 17-20, 2008|
|Research Areas:||Terahertz Technology|
|PDF version:||Click here to retrieve PDF version of paper (399KB)|