| タイトル | MgB2 Thin-Film Bolometer for Applications in Far-Infrared Instruments on Future Planetary Missions |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120010505 |
| 著者（英） | Costen, N.; Aslam, S.; Brasunas, J.; La, A.; Cao, N.; Waczynski, A.; Lakew, B.; Stevenson, T. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2012-05-31 |
| 言語 | eng |
| 内容記述 | A SiN membrane based MgB2 thin-film bolometer, with a non-optimized absorber, has been fabricated that shows an electrical noise equivalent power of 256 fW/square root Hz operating at 30 Hz in the 8.5 - 12.35 micron spectral bandpass. This value corresponds to an electrical specific detectivity of 7.6 x 10(exp 10) cm square root Hz/W. The bolometer shows a measured blackbody (optical) specific detectivity of 8.8 x 10(exp 9) cm square root Hz/W, with a responsivity of 701.5 kV/W and a first-order time constant of 5.2 ms. It is predicted that with the inclusion of a gold black absorber that a blackbody specific detectivity of 6.4 x 10(exp 10) cm/square root Hz/W at an operational frequency of 10 Hz, can be realized for integration into future planetary exploration instrumentation where high sensitivity is required in the 17 - 250 micron spectral wavelength range. |
| NASA分類 | Instrumentation and Photography |
| レポートNO | GSFC.JA.00388.2012 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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