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Table 1
Characteristics of the two LEKID detector arrays.
| 3 mm array | 2 mm array | |
|
|
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| Valid pixels [#] | 132 | 132 |
| Pixel size [mm] | 2.3 | 2.3 |
| Film | Titanium-aluminium bi-layer | Aluminium |
| Film thickness [nm] | 10–25 | 18 |
| Silicon wafer thickness [μm] | 525 | 300 |
| Transition critical temp [K] | 0.9 | 1.5 |
| Frequency cut-off [GHz] | 65 | 110 |
| Polarised sensitive detectors | no | no |
| Optical background [pW] | 0.3 | 0.5 |
| Angular size [Fλ] | 0.75 | 0.75 |
| Overall optical efficiency [%] | 30 | 30 |
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