Loss investigations of high frequency lithium niobate Lamb wave resonators at ultralow temperatures
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908589195526144 |
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| author | Jiang, Wenbing Xu, Xuankai Pan, Jiazhen Sun, Hancong Guo, Yu Wang, Huabing Zhou, Libing Wu, Tao |
| author_facet | Jiang, Wenbing Xu, Xuankai Pan, Jiazhen Sun, Hancong Guo, Yu Wang, Huabing Zhou, Libing Wu, Tao |
| contents | Lamb wave resonators (LWRs) operating at ultralow temperatures serve as promising acoustic platforms for implementing microwave-optical transduction and radio frequency (RF) front-ends in aerospace communications because of the exceptional electromechanical coupling (k^2) and frequency scalability. However, the properties of LWRs at cryogenic temperatures have not been well understood yet. Herein, we experimentally investigate the temperature dependence of the quality factor and resonant frequency in higher order antisymmetric LWRs down to millikelvin temperatures. The high-frequency A1 and A3 mode resonators with spurious-free responses are comprehensively designed, fabricated, and characterized. The quality factors of A1 modes gradually increase upon cryogenic cooling and shows 4 times higher than the room temperature value, while A3 mode resonators exhibit a non-monotonic temperature dependence. Our findings provide new insights into loss mechanisms of cryogenic LWRs, paving the way to strong-coupling quantum acoustodynamics and next-generation satellite wireless communications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_10983 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Loss investigations of high frequency lithium niobate Lamb wave resonators at ultralow temperatures Jiang, Wenbing Xu, Xuankai Pan, Jiazhen Sun, Hancong Guo, Yu Wang, Huabing Zhou, Libing Wu, Tao Applied Physics Superconductivity Lamb wave resonators (LWRs) operating at ultralow temperatures serve as promising acoustic platforms for implementing microwave-optical transduction and radio frequency (RF) front-ends in aerospace communications because of the exceptional electromechanical coupling (k^2) and frequency scalability. However, the properties of LWRs at cryogenic temperatures have not been well understood yet. Herein, we experimentally investigate the temperature dependence of the quality factor and resonant frequency in higher order antisymmetric LWRs down to millikelvin temperatures. The high-frequency A1 and A3 mode resonators with spurious-free responses are comprehensively designed, fabricated, and characterized. The quality factors of A1 modes gradually increase upon cryogenic cooling and shows 4 times higher than the room temperature value, while A3 mode resonators exhibit a non-monotonic temperature dependence. Our findings provide new insights into loss mechanisms of cryogenic LWRs, paving the way to strong-coupling quantum acoustodynamics and next-generation satellite wireless communications. |
| title | Loss investigations of high frequency lithium niobate Lamb wave resonators at ultralow temperatures |
| topic | Applied Physics Superconductivity |
| url | https://arxiv.org/abs/2510.10983 |