Abstract
The authors have built a microwave Fabry-Perot resonator made of diamond-machined copper mirrors coated with superconducting niobium. Its damping time (T-c=130 ms at 51 GHz and 0.8 K) corresponds to a finesse of 4.6x10(9), the highest ever reached for a Fabry-Perot in any frequency range. This result opens many perspectives for quantum information processing, decoherence and nonlocality studies.
Original language | English |
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Article number | 164101 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 90 |
Issue number | 16 |
DOIs | |
Publication status | Published - 16 Apr 2007 |
Keywords
- Fabry-Perot resonators
- superconducting resonators
- microwave devices
- machining
- optical films
- niobium