Abstract
We report on realization of a 2 × 2 NbN hot electron bolometer (HEB) array receiver using multiple local oscillator (LO) beams that are obtained from a Fourier phase grating mirror. The grating splits a 1.4 THz single beam into four uniform sub-beams. Two 50mm lenses are applied to collimate each beam in order to achieve a spacing of 12mm between them. The LO power in each beam is shown to be enough to fully pump the HEB mixer elements. The IV curves, noise temperature and IF bandwidth for each pixel is then characterized.
Original language | English (US) |
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Title of host publication | 26th International Symposium on Space Terahertz Technology, ISSTT 2015 |
Publisher | International Symposium on Space Terahertz Technology |
State | Published - 2015 |
Event | 26th International Symposium on Space Terahertz Technology, ISSTT 2015 - Cambridge, United States Duration: Mar 16 2015 → Mar 18 2015 |
Other
Other | 26th International Symposium on Space Terahertz Technology, ISSTT 2015 |
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Country/Territory | United States |
City | Cambridge |
Period | 3/16/15 → 3/18/15 |
ASJC Scopus subject areas
- Radiation
- Electrical and Electronic Engineering
- Computer Networks and Communications
- Atomic and Molecular Physics, and Optics
- Space and Planetary Science