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Study of MgB2 HEB mixers vs the LO frequency and the bath temperature

Sergey Cherednichenko (Institutionen för mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik ) ; Evgenii Novoselov (Institutionen för mikroteknologi och nanovetenskap, Terahertz- och millimetervågsteknik ) ; S. Bevilacqua ; H. Shibata ; Y. Tokura
26th International Symposium on Space Terahertz Technology, ISSTT 2015 M2, p. 1-3. (2015)
[Konferensbidrag, refereegranskat]

We investigate the noise and the gain of MgB2Hot-Electron Bolometer (HEB) mixers at 1.63THz LO. The critical temperature of the HEB was 22K and the film thickness was 20nm. At 4.2K and 12K bath temperatures the lowest obtained receiver noise temperatures are 1700K and 2100K,respectively, with a noise bandwidth of about 4.6GHz. The gain bandwidth is about 3GHz in both cases.



Denna post skapades 2015-12-09. Senast ändrad 2016-08-26.
CPL Pubid: 227688