Averkin Alexander, Zhuravel Alexander, Jung Philipp, Maleeva Natalia, Koshelets Valery, Filippenko Lyudmila, Karpov Alexander, Ustinov Alexey Imaging coherent response of superconducting metasurface. IEEE Transactions on Appiled Superconductivity , 2016 , 26 (3). ISSN 1051-8223
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We study microwave response of the individual metaatoms of a superconducting metasurface formed by a two-dimensional array of superconducting quantum interference devices (SQUIDs). In our experiment, RF currents in the metasurface are directly imaged by using the laser scanning microscopy (LSM) technique. We tested a sample with 21 × 21 SQUID array in a waveguide cavity designed to achieve a uniform microwave distribution over the entire array. The demonstrated tunability of 2D SQUID metasurface resonance frequency by external magnetic field is about 56%, covering 8-12.5-GHz range. The obtained LSM images of the RF current distributions over the SQUID array confirm a high degree of coherence of the entire metasurface. The SQUID-based metasurfaces combine low losses and frequency tunability and can be useful for designing compact cryogenic RF systems.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Аверкин Александр, Журавлев Александр, Юнг Филипп, Малеева Наталья, Кошелец Валерий, Филиппенко Людмила, Карпов Александр, Устинов Алексей |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 234 лаб. сверхпроводниковых устройств для приема и обработки информации |
| URI: | http://cplire.ru:8080/id/eprint/767 |
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