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We theoretically investigate the use of Rayleigh surface acoustic waves (SAWs) for refractive index modulation in optical waveguides consisting of amorphous dielectrics. Considering low-loss Si$_3$N$_4$ waveguides with a standard core cross…

We report large nonreciprocity in the transmission of shear-horizontal surface acoustic waves (SAWs) on LiTaO3 substrate coated with a FeCoSiB/NiFeCu magnetoelastic bilayer. The large difference in saturation magnetization of the two layers…

Applied Physics · Physics 2023-09-19 Mingxian Huang , Yuanyuan Liu , Wenbin Hu , Yutong Wu , Wen Wang , Wei He , Huaiwu Zhang , Feiming Bai

This work presents a platform that enables surface acoustic wave (SAW) modulation of both intralayer and interlayer excitons in MoS2/WSe2 heterostructures. Harnessing the coupled piezoelectric and strain fields of SAWs, this integrated…

Motivated by the recent progress of phonon-mediated control in quantum spin devices, we propose a possibility of hybrid measurement using electron paramagnetic resonance (EPR) and a surface acoustic wave (SAW). Considering quadrupole-strain…

Strongly Correlated Electrons · Physics 2020-11-04 Mikito Koga , Masashige Matsumoto

Exploiting multiple modes in a quantum acoustic device could enable applications in quantum information in a hardware-efficient setup, including quantum simulation in a synthetic dimension and continuous-variable quantum computing with…

Harnessing the causal relationships between mechanical and magnetic properties of van der Waals materials presents a wealth of untapped opportunity for scientific and technological advancement, from precision sensing to novel memories. This…

The excitation and detection of coherent phonons has given unique insights into condensed matter, in particular for materials with strong electron-phonon coupling. We report a study of coherent phonons in the layered charge density wave…

A central goal in spintronics and magnonics is the use of spin waves rather than electrons for efficient information processing. The key to integrate such spintronic circuits with electronic circuits is the ability to inject, control and…

Mesoscale and Nanoscale Physics · Physics 2024-08-28 J. S. Harms , H. Y. Yuan , Rembert A. Duine

The exponential growth of photonic quantum technologies is driving the demand of tools for measuring the quality of their information carriers. One of the most prominent is Stimulated Emission Tomography (SET), which uses classical coherent…

Quantum Physics · Physics 2020-04-22 Massimo Borghi

We show that the resonant coupling of phonons and magnons can be exploited to generate spin currents at room temperature. Surface acoustic wave (SAW) pulses with a frequency of 1.55 GHz and duration of 300 ns provide coherent elastic waves…

Materials Science · Physics 2013-10-30 M. Weiler , H. Huebl , F. S. Goerg , F. D. Czeschka , R. Gross , S. T. B. Goennenwein

Excitation of coherent high-frequency magnons (quanta of spin waves) is critical to the development of high-speed magnonic devices. Here we computationally demonstrate the excitation of coherent sub-terahertz (THz) magnons in ferromagnetic…

Applied Physics · Physics 2022-06-22 Shihao Zhuang , Jia-Mian Hu

The authors combine acousto-optoelectric and multi-channel photon correlation spectroscopy to probe spatio-temporal carrier dynamics induced by a piezoelectric surface acoustic wave (SAW). The technique is implemented by combining…

Mesoscale and Nanoscale Physics · Physics 2021-09-08 Maximilian M. Sonner , Daniel Rudolph , Gregor Koblmüller , Hubert J. Krenner

Electroluminescence emission from surface acoustic wave-driven light-emitting diodes (SAWLEDs) is studied by means of time-resolved techniques. We show that the intensity of the SAW-induced electroluminescence is modulated at the SAW…

Other Condensed Matter · Physics 2009-11-11 Marco Cecchini , Vincenzo Piazza , Fabio Beltram , D. G. Gevaux , M. B. Ward , A. J. Shields , H. E. Beere , D. A. Ritchie

We experimentally observe the generation of magnon harmonics and subharmonics in an on-chip surface acoustic wave resonator incorporating a thin Co$_{20}$Fe$_{60}$B$_{20}$ film, using micro-focused Brillouin light scattering. In our…

Spin waves - the elementary excitations of magnetic materials - are prime candidate signal carriers for low dissipation information processing. Being able to image coherent spin-wave transport is crucial for developing interference-based…

We study the interaction of Rayleigh and shear horizontal surface acoustic waves (SAWs) with spin waves in thin Ni films on a piezoelectric LiTaO$_3$ substrate, which supports both SAW modes simultaneously. Because Rayleigh and shear…

Materials Science · Physics 2021-03-22 M. Küß , M. Heigl , L. Flacke , A. Hefele , A. Hörner , M. Weiler , M. Albrecht , A. Wixforth

Strengthening magnetoacoustic coupling is crucial to the improvement of the surface acoustic wave (SAW)-driven spintronics devices. A key challenge in enhancing magnetoacoustic coupling is minimizing the phonon and magnon dissipation of the…

Applied Physics · Physics 2025-04-03 Shuting Cui , Fa Chen , Liyang Liao , Jiacheng Lu , Rui Xiong , Xiaofei Yang , Yoshichika Otani , Yue Zhang , Wei Luo

A hybrid system with tunable coupling between phonons and qubits shows great potential for advancing quantum information processing. In this work, we demonstrate strong and tunable coupling between a surface acoustic wave (SAW) resonator…

We investigate tripartite coupling between phonons, magnons and photons in a periodic array of elliptical magnetostrictive nanomagnets delineated on a piezoelectric substrate to form a two-dimensional two-phase multiferroic crystal. A…

Mesoscale and Nanoscale Physics · Physics 2023-01-24 Raisa Fabiha , Jonathan Lundquist , Sudip Majumder , Erdem Topsakal , Anjan Barman , Supriyo Bandyopadhyay

The coherent modulation of electronic and vibrational nonlinearities in atoms and molecular gases by intense few-cycle pulses has been used for high-harmonic generation in the soft X-ray and attosecond regime, as well as for Raman frequency…

Materials Science · Physics 2013-09-16 Muneaki Hase , Masayuki Katsuragawa , Anca Monia Constantinescu , Hrvoje Petek