Loading...
Please wait, while we are loading the content...
Similar Documents
A Distributed Terahertz Metasurface with Cold-Electron Bolometers for Cosmology Missions
| Content Provider | MDPI |
|---|---|
| Author | Beiranvand, Behrokh Sobolev, Alexander Larionov, Michael Kuzmin, Leonid |
| Copyright Year | 2021 |
| Description | We developed and tested a 2D periodic array of cold-electron bolometers arranged into a wideband frequency selective metasurface that absorbs more than 70% of the incident power in the frequency range 100–800 GHz. The array had 10 × 10 unit cells, each containing four bolometers incorporated into a ring. The chip with bolometers was mounted on the back side of the silicon lens without a back-reflector. Preliminary experiments demonstrated voltage responsivity as high as 109 V/W for the current-biased series array. Simulation of the noise performance shows realization of background noise-limited performance with NEPtot < NEPphot for the optical power load P0 > 15 pW. Results of numerical simulation made for the unit cell of the array are presented together with the equivalent diagram based on lumped network elements. The unit cell also was developed numerically to operate in two radiation modes. |
| Starting Page | 4459 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app11104459 |
| Journal | Applied Sciences |
| Issue Number | 10 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-05-14 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Nuclear Energy and Engineering Telecommunications Cold-electron Bolometer Frequency Selective Metasurface Terahertz Detector Cryogenic Device |
| Content Type | Text |
| Resource Type | Article |
