Development of THz waveguide NbTiN HEB mixers
| dc.contributor.author | Jiang, Ling | |
| dc.contributor.author | Shiba, S | |
| dc.contributor.author | Shimbo, Ken | |
| dc.contributor.author | Sakai, Nami | |
| dc.contributor.author | Yamakura, Tetsuya | |
| dc.contributor.author | Sugimura, Mika | |
| dc.contributor.author | Ananthasubramanian, P G | |
| dc.contributor.author | Maezawa, H | |
| dc.contributor.author | Irimajiri, Y | |
| dc.date.accessioned | 2010-01-20T11:34:20Z | |
| dc.date.available | 2010-01-20T11:34:20Z | |
| dc.date.issued | 2009-06 | |
| dc.description | Open Access | en |
| dc.description.abstract | In this paper, we present the development of the waveguide niobium titanium nitride (NbTiN) superconducting hot electron bolometer (HEB) mixers, cryogenically cooled by a 4 K close-cycled refrigerator. The NbTiN thin film is formed on a crystalline quartz substrate by sputtering an NbTi target with the Ar and N2 gas at room temperature. The HEB mixer element is fabricated by using the 12 nm NbTiN film, and is mounted on a waveguide block. Measurement of a Fourier transform spectrometer shows that the response of the mixer is centered near 810 GHz with a bandwidth of about 500 GHz. The uncorrected DSB receiver noise temperature is measured to be 500 K, and the noise bandwidth is to be 1.4 GHz at 810 GHz. The present result shows that a good noise performance can be obtained for the NbTiN HEB mixer even with a relatively thick film (12 nm) fabricated at the room temperature. | en |
| dc.identifier.citation | IEEE Transactions on Applied Superconductivity, 2009, Vol.19, p301-304 | en |
| dc.identifier.issn | 1051-8223-P | |
| dc.identifier.issn | 1558-2515 -E | |
| dc.identifier.uri | http://hdl.handle.net/2289/3894 | |
| dc.language.iso | en | en |
| dc.publisher | IEEE | en |
| dc.relation.uri | http://adsabs.harvard.edu/abs/2009ITAS...19..301J | en |
| dc.relation.uri | http://dx.doi.org/10.1109/TASC.2009.2019071 | en |
| dc.rights | © 2009 IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Raman Research Institute's's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. | en |
| dc.subject | Terahertz | en |
| dc.subject | NbTiN film | en |
| dc.subject | Hot electron bolometer mixer | en |
| dc.title | Development of THz waveguide NbTiN HEB mixers | en |
| dc.type | Article | en |