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Author | Zhang, W.; Miao, W.; Yao, Q. J.; Lin, Z. H.; Shi, S. C.; Gao, J. R.; Goltsman, G. N. | ||||
Title | Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer | Type | Journal Article | ||
Year | 2012 | Publication | Phys. Procedia | Abbreviated Journal | Phys. Procedia |
Volume | 36 | Issue | Pages | 334-337 | |
Keywords | NbN HEB mixer | ||||
Abstract | We report on a 2.5 THz spiral antenna coupled NbN hot electron bolometer (HEB) mixers, fabricated with in-situ process. The receiver noise temperature with lowest value of 1180 K is in good agreement with calculated quantum efficiency factor as a function of bias voltage. In addition, the measured spectral response of the spiral antenna coupled NbN HEB mixer shows broad frequency coverage of 0.8-3 THz, and corrected response for optical losses, FTS, and coupling efficiency between antenna and bolometer falls with frequency due to diffraction-limited beam of lens/antenna combination. | ||||
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Language | Summary Language | Original Title | |||
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Series Volume | Series Issue | Edition | |||
ISSN | 1875-3892 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1381 | |||
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