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| Content Provider | Springer Nature Link |
|---|---|
| Author | Shi, ShengCai |
| Copyright Year | 2012 |
| Abstract | The terahertz (THz) regime, loosely defined as 0.1–10 THz, is the last frequency window to be fully explored in astronomy. In particular, it is a regime in which there are rich molecular rotation lines and atomic fine structure lines. They are very important tracers for studying the dynamics of astronomical objects such as stars and planetary systems. Observing those spectral lines usually makes use of coherent detectors (i.e., heterodyne mixers). With sensitivity approaching the quantum limit, superconducting mixers have become the coherent detector of choice in THz astronomy. In this paper we mainly introduce the superconducting mixers developed at Purple Mountain Observatory and those for international collaborative projects. |
| Starting Page | 120 |
| Ending Page | 126 |
| Page Count | 7 |
| File Format | |
| ISSN | 1674733X |
| Journal | Science in China Series : Information Sciences |
| Volume Number | 55 |
| Issue Number | 1 |
| e-ISSN | 18691919 |
| Language | English |
| Publisher | SP Science China Press |
| Publisher Date | 2011-12-30 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | terahertz detection superconducting mixer quantum limit Information Systems and Communication Service |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Science |
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