Terahertz mixing in MgB2 microbolometers

S. Cherednichenko*, V. Drakinskiy, K. Ueda, M. Naito

*この研究の対応する著者

研究成果: Article査読

34 被引用数 (Scopus)

抄録

The authors report on a terahertz (600 GHz) mixing experiment with Mg B2 microbolometers in the resistive state. The authors observed that for a 20 nm film a mixer gain bandwidth of 2.3 GHz can be achieved, corresponding to an energy relaxation time of 70 ps. The experimental results were analyzed using a two-temperature model. As a result, the phonon escape time of ∼20 ps was deduced. At 1.6 THz the Mg B2 mixer uncorrected noise temperature was 11 000 K. The obtained results show that Mg B2 bolometers are good prospects for the terahertz range as both broadband mixers and fast direct detectors.

本文言語English
論文番号023507
ジャーナルApplied Physics Letters
90
2
DOI
出版ステータスPublished - 2007
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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