Observing polarization patterns in the collective motion of nanomechanical arrays

Doster, Juliane; Shah, Tirth; Fösel, T.; Marquardt, Florian; Weig, Eva M.

doi:10.1038/s41467-022-30024-0

Cited by 12 publications

(7 citation statements)

References 33 publications

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“…To understand the conditions required for strain engineering and buckling, we develop reducedorder models from finite element (FE) simulations, which highlight the important role of the support angle in tuning the nonlinear dynamic response. Our results thus provide experimental evidence of controllable nonlinear dynamic engineering of nanomechanical resonators solely by geometric design, and paves the way for integrating arrays of highly tunable nonlinear nanodevices on a single chip [31][32][33][34][35].…”

mentioning

confidence: 64%

Strain Engineering of Nonlinear Nanoresonators from Hardening to Softening

Alijani,

Li,

et al. 2023

Preprint

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Although strain engineering and soft-clamping techniques for attaining high Q-factors in nanoresonators have received much attention, their impact on nonlinear dynamics is not fully understood. In this study, we show that nonlinearity of high-Q Si3N4 nanomechanical string resonators can be substantially tuned by support design. Through careful engineering of support geometries, we control both stress and mechanical nonlinearities, effectively tuning nonlinear stiffness over a factor more than 100. Our approach also allows control over the sign of the Duffing constant, turning it negative via buckling, and resulting in nonlinear softening of the mechanical mode that conventionally only exhibits hardening behavior. We elucidate the influence of support design on the magnitude and trend of the nonlinearity using both analytical and finite element-based reduced-order models that accurately validate our experimental findings. Our work not only provides the first evidence of the role of soft-clamping on the nonlinear dynamic response of nanoresonators, but it also offers new possibilities for nullifying or enhancing nonlinearity in a highly reproducible and fully passive manner, appealing to both classical and quantum-limited resonant sensors.

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mentioning

confidence: 64%

Strain Engineering of Nonlinear Nanoresonators from Hardening to Softening

Alijani,

Li,

et al. 2023

Preprint

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“…For instance, GaAs pillar arrays have shown great potential in elucidating the underlying physics of polarization patterns and topological transport in intricate devices. [ 21 ] Additionally, bulked CNT resonant bridges have been utilized to explore the nonlinear coupling behavior between the in‐plane and out‐of‐plane modes of CNT motion. [ 22 ] Doster et.…”

Section: State‐of‐the‐art Mmr Sensorsmentioning

confidence: 99%

“…The MMRs are the core component of resonant sensors that have found useful applications, ranging from probing material properties, a better understanding fundamental science and physics to device applications. [19][20][21][22][23] In respect to their practical applications, MMRs and resonant sensors are usually found in timing references, atomic force microscopy (AFMs), accelerometers and mass sensing devices. [24] In the areas of chemical and biological applications, micromachined resonators are for use in monitoring small molecules, and this aspect has attracted massive attention over the past decades especially in healthcare, food and environmental safety, and biosecurity.…”

Section: Introductionmentioning

confidence: 99%

Micromachined Mechanical Resonant Sensors: From Materials, Structural Designs to Applications

Dinh,

Rais‐Zadeh,

Nguyen

et al. 2023

Adv Materials Technologies

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Driving a micro and nanomechanical structure to resonance and observing its resonant motion in the physical world have led to numerous fundamental discoveries in physics, sciences, chemistry, biology, and engineering, as well as device commercialization. Scaling down mechanical structures from micrometric to nanometric size has enabled the utilization of resonant motions to probe material properties and various dynamical phenomena in quantum coherence and squeezing. Recent advances in material sciences and nanofabrication resulted in successful demonstration of ultra‐high frequency operation (GHz range) and ultra‐high quality factor (10 billion) micromachined mechanical resonators (MMRs). The resonant motion of these structures has been utilized as an indispensable tool to weigh biological and chemical species at resolution of atomic mass unit, sense a force as small as zepto‐newton, and to detect numerous other physical parameters. Here, a systematic view on the resonant sensing transduction is provided, underlying physics, and sensing structures realized with micro/nano‐electromechanical systems (MEMS/NEMS) technologies. It is also describe the roles of nanomaterials and structures, nano‐fabrication and rational designs on the resonance frequency and quality factor of MMRs toward high‐performance sensing. This paper discusses the most recent advances in the development of MMRs for material characterization as well as biological, chemical, and physical sensing. Finally, the paper discusses the challenges and perspectives on design, fabrication, and developments of resonant sensors with high quality factor toward quantum sensing, and ultra‐high sensitivity and resolution for classical sensing applications.

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“…We stress that these mechanical-mechanical couplings can be achieved in different ways. For instance, strain force could induce mechanical-mechanical couplings [28][29][30]. However these coupling interactions are rigid due to the intrinsically fixed geometry.…”

Section: Introductionmentioning

confidence: 99%

Tunable chiral spin–spin interactions in a spin-mechanical hybrid system: application to causal-effect simulation

Li,

Zhao

et al. 2024

New J. Phys.

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Long-range chiral interactions are very attractive due to their potential applications in quantum simulation and quantum information processing. Here we propose and analyze a novel spin-mechanical hybrid quantum device for designing and engineering chiral spin-spin interactions by integrating spin qubits into a programmable mechanical chain. After mapping the Hamiltonian of the mechanical lattice to the Su-Schrieffer-Heeger model, we find that chiral spin-phonon bound states and spin-spin coupling interactions can be achieved. Specifically, the range and strength of chiral spin-spin couplings can be tuned in situ by the on-chip manipulation voltages. We further employ this setup to simulate the causal effects in long-range chiral-coupling systems, showing that the correlation functions propagate individually in two sublattices. These phenomena are very different from the situations in the conventional long-range coupling quantum systems without chiral symmetry.

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Observing polarization patterns in the collective motion of nanomechanical arrays

Cited by 12 publications

References 33 publications

Strain Engineering of Nonlinear Nanoresonators from Hardening to Softening

Strain Engineering of Nonlinear Nanoresonators from Hardening to Softening

Micromachined Mechanical Resonant Sensors: From Materials, Structural Designs to Applications

Tunable chiral spin–spin interactions in a spin-mechanical hybrid system: application to causal-effect simulation

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