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arXiv · 2312.15413

Suppression of Electromagnetic Crosstalk by Differential Excitation for SAW Generation

Shunsuke Ota·Yuma Okazaki·Shuji Nakamura·Takehiko Oe·Hermann Sellier·Christopher Bäuerle·Nobu-Hisa Kaneko·Tetsuo Kodera·Shintaro Takada
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Abstract

Surface acoustic waves (SAWs) hold a vast potential in various fields such as spintronics, quantum acoustics, and electron-quantum optics, but an electromagnetic wave emanating from SAW generation circuits has often been a major hurdle. Here, we investigate a differential excitation method of interdigital transducers (IDTs) to generate SAWs while reducing the electromagnetic wave. The results show that electromagnetic waves are suppressed by more than 90% in all directions. This suppression overcomes the operating limits and improves the scalability of SAW systems. Our results promise to facilitate the development of SAW-based applications in a wide range of research fields.

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Shunsuke Ota, Yuma Okazaki, Shuji Nakamura, Takehiko Oe, Hermann Sellier, Christopher Bäuerle, Nobu-Hisa Kaneko, Tetsuo Kodera, Shintaro Takada. 2023-12-24. Suppression of Electromagnetic Crosstalk by Differential Excitation for SAW Generation. https://doi.org/10.35848/1882-0786%2Fad253f

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