| 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 |
| Proceedings: |
Proc., SPIE |
| Volume: |
Vol. 6948 |
| Pages: |
pp. 694806-1 - 694806-10 |
| Location: |
Orlando, FL |
| Dates: |
March 17-20, 2008 |
| Keywords: |
imaging;microbolometer arrays;millimeter-wave;terahertz |
| Research Areas: |
Terahertz Technology |
| PDF version: |
 Click here to retrieve PDF version of paper (390KB) |
