DOAJ Open Access 2025

Far-field phonon coupling in valley metamaterial circuits

Yao Huang Weitao Yuan Zhiwei Guo Qi Wang Yuxuan Zhang +6 lainnya

Abstrak

Abstract On-chip whispering-gallery-mode cavities enable versatile bosonic wave manipulation but typically rely on near-field evanescent coupling. Here we experimentally demonstrate broadband far-field phonon coupling in a valley metamaterial cavity integrated with a Dirac-cone waveguide—termed a “Dirac strip”. The far-field coupling is confirmed by transmission spectroscopy and spatiotemporal field mapping over distances up to approximately five wavelengths, enabling multiplexed, distance-robust coupling pathways that overcome near-field limitations. By combining near-field and far-field cavities on the same substrate, we achieve amplification and control of non-Hermitian dynamics through loss and distance modulation of sympathetic resonances, directly resolved via piezo-laser interferometry. This work establishes a scalable phononic platform for far-field coupling and paves the way for parallel topological wave processors.

Topik & Kata Kunci

Science

Penulis (11)

Yao Huang

Weitao Yuan

Zhiwei Guo

Qi Wang

Yuxuan Zhang

Yueting Zhou

Yongdong Pan

Jia Zhou

Oliver B. Wright

Zheng Zhong

Jinfeng Zhao

Format Sitasi

APA MLA BibTeX

Huang, Y., Yuan, W., Guo, Z., Wang, Q., Zhang, Y., Zhou, Y. et al. (2025). Far-field phonon coupling in valley metamaterial circuits. https://doi.org/10.1038/s41467-025-67108-6

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1038/s41467-025-67108-6
Akses: Open Access ✓