Article
Multidisciplinary Sciences
Dennis Hoj, Fengwen Wang, Wenjun Gao, Ulrich Busk Hoff, Ole Sigmund, Ulrik Lund Andersen
Summary: Engineered micro- and nanomechanical resonators with ultra-low dissipation show great potential for various quantum technologies and foundational research. Traditional human intuition-driven improvement of resonator performance is inefficient, so a computer-aided inverse design approach called topology optimization is used here to achieve optimized mechanical resonators with record-high Q · f products for their fundamental mode. This new approach opens up possibilities for designing ultra-coherent micro- and nanomechanical resonators, enabling novel experiments in fundamental physics and extreme sensing.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Alberto Martin-Perez, Daniel Ramos
Summary: Microfluidics is a versatile technique for analyzing flowing particles and measuring the mechanical properties of biological cells using hydrodynamic forces. However, there is currently no available method for directly measuring and tracking these hydrodynamic forces. This study introduces a novel approach using suspended microchannel resonators (SMRs) to directly measure the hydrodynamic force on flowing particles by analyzing the induced resonance changes. The sensitivity of this measurement depends on the device used, so the geometry and materials of the SMRs were considered to improve the dependence on SMR resonance frequency.
MICROSYSTEMS & NANOENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Leo Sementilli, Erick Romero, Warwick P. Bowen
Summary: Nanomechanical resonators have a wide range of applications in various technologies, with the quality factor being critical. In recent years, new methods have been developed to exceed the previous boundaries of mechanical quality factors rarely exceeding a million. Engineering design, acoustic bandgaps, and dissipation dilution methods have allowed quality factors to approach a billion, achieving extremely low dissipation.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jan N. Kirchhof, Yuefeng Yu, Gabriel Antheaume, Georgy Gordeev, Denis Yagodkin, Peter Elliott, Daniel B. de Araujo, Sangeeta Sharma, Stephanie Reich, Kirill Bolotin
Summary: We present a nanomechanical platform for rapid and sensitive measurements of the spectrally resolved optical dielectric function of 2D materials. The key feature of our approach is the integration of a suspended 2D material into a high Q silicon nitride nanomechanical resonator, which is illuminated by a wavelength-tunable laser source. By analyzing the frequency shift of the resonator and the optical reflection as a function of photon energy, we can obtain the real and imaginary parts of the dielectric function. This method, with its fast response time, high sensitivity, and broad measurement range, offers an attractive alternative to traditional spectroscopic or ellipsometric characterization techniques.
Article
Chemistry, Multidisciplinary
Hendrik Kaehler, Holger Arthaber, Robert Winkler, Robert G. West, Ioan Ignat, Harald Plank, Silvan Schmid
Summary: One challenge in nanoelectromechanical systems (NEMS) is the efficient transduction of tiny resonators. In this study, an electromechanical transduction method based on surface acoustic waves (SAWs) is presented, which successfully transduces freestanding nanomechanical platinum-carbon pillar resonators in the first-order bending and compression mode.
Article
Multidisciplinary Sciences
H. Y. Gao, L. F. Wei
Summary: In this paper, an alternative approach is proposed to characterize the physical features of a nanomechanical resonator (NMR) embedded in a rf-SQUID based superconducting qubit by probing the scattering spectra of the quantum mechanical prober coupled to the driving microwaves. The vibrational features (classical or quantum mechanical) and physical parameters (such as vibrational frequency and displacements) of the NMR can be effectively determined from the observed specific frequency points (dips or peaks) in the spectra. The proposal is feasible with the current technique and useful for designing desired NMRs for various quantum metrological applications.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Irene Sanchez Arribas, Takashi Taniguchi, Kenji Watanabe, Eva M. Weig
Summary: In this Letter, the first observation of radiation pressure backaction at telecom wavelengths with a hBN drum-head mechanical resonator is reported. The thermomechanical motion of the resonator is coupled to the optical mode of a high finesse fiber-based Fabry-Perot microcavity, allowing for the resolution of the optical spring effect and optomechanical damping. This paves the way for tailoring the mechanical properties of hBN resonators with light.
Article
Physics, Multidisciplinary
Tian Tian, Yichuan Zhang, Liang Zhang, Longhao Wu, Shaochun Lin, Jingwei Zhou, Chang-Kui Duan, Jian-Hua Jiang, Jiangfeng Du
Summary: In this study, robust unidirectional adiabatic pumping of phonons was achieved in a parametrically coupled nanomechanical system. By utilizing nearly degenerate local modes and their dynamic modulation, nonreciprocal transfer of phononic excitations from one edge to the other was achieved with near unit fidelity. This experiment paves the way for nonreciprocal phonon dynamics via adiabatic pumping and has significant implications for phononic quantum information processing.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Applied
C. Samanta, D. A. Czaplewski, S. L. De Bonis, C. B. Moller, R. Tormo-Queralt, C. S. Miller, Y. Jin, F. Pistolesi, A. Bachtold
Summary: In this paper, a simple and reliable method is introduced to extract solely the driven mechanical vibrations by eliminating the contribution of pure electrical origin. This allows the measurement of the spectral mechanical response and the driven quadratures of motion in nanomechanical resonators based on low-dimensional materials. This method is crucial for studying nanomechanical vibrations in the nonlinear regime.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Juhee Ko, Faheem Khan, Youngsuk Nam, Bong Jae Lee, Jungchul Lee
Summary: This paper introduces a heater-integrated fluidic resonator (HFRs) that enables fast, quantitative, alignment-free, and wide-range temperature modulation and simultaneously offers resistive thermometry and resonant densitometry. The HFR opens up a new avenue for nanoscale thermal analysis and processing.
Article
Chemistry, Multidisciplinary
Myrron Albert Callera Aguila, Joshoua Condicion Esmenda, Jyh-Yang Wang, Teik-Hui Lee, Chi-Yuan Yang, Kung-Hsuan Lin, Kuei-Shu Chang-Liao, Sergey Kafanov, Yuri A. Pashkin, Chii-Dong Chen
Summary: This study addresses the challenges of characterizing dynamic properties of nanomechanical resonators made from van der Waals materials in optoelectromechanical technologies. A modeling-based approach using multilayer thin-film interference allows for non-invasive determination of resonator properties. The method is demonstrated to be robust and scalable, applicable to various types of nanomechanical resonators.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Tahmid Kaisar, Jaesung Lee, Donghao Li, Steven W. Shaw, Philip X. -L. Feng
Summary: This study reports on the nonlinear dynamic characteristics of ultimately thin nanomechanical resonators built upon single-layer, bilayer, and trilayer molybdenum disulfide vibrating membranes. Through experimental measurements and quantitative analyses, the nonlinear damping and stiffness coefficients at cubic and quintic orders were determined for these two-dimensional resonators. The study highlights the importance of considering the quintic force in nonlinear dynamics analysis.
Review
Chemistry, Multidisciplinary
Bo Xu, Pengcheng Zhang, Jiankai Zhu, Zuheng Liu, Alexander Eichler, Xu-Qian Zheng, Jaesung Lee, Aneesh Dash, Swapnil More, Song Wu, Yanan Wang, Hao Jia, Akshay Naik, Adrian Bachtold, Rui Yang, Philip X. -L. Feng, Zenghui Wang
Summary: The pursuit of miniaturizing and manipulating movable structures and machines has led to important discoveries and innovations, especially at the nanoscale. These tiny movable structures hold great potential for both fundamental research and engineering applications.
Article
Chemistry, Analytical
Alberto Martin-Perez, Daniel Ramos, Javier Tamayo, Montserrat Calleja
Summary: This study investigates the phenomena occurring in a suspended microchannel resonator when a hydrostatic pressure is applied to the inner fluid, showing that pressure-induced mass effects can be used to characterize different fluids with high precision. The proposed device can accurately measure the mass density of unknown liquid samples and characterize gas mixtures by measuring their average molecular mass, demonstrating resolutions of 0.7 mu g/mL and 0.01 atomic mass units, respectively.
Article
Chemistry, Multidisciplinary
Shelender Kumar, Shishram Rebari, Satyendra Prakash Pal, Shyam Sundar Yadav, Abhishek Kumar, Aaveg Aggarwal, Sagar Indrajeet, Ananth Venkatesan
Summary: In this study, cubic nonlinear damping was observed in palladium nanomechanical resonators. The damping was found to be highest at around 110 mK and decreased as the temperature increased up to 1 K. The results provide experimental evidence of temperature-dependent nonlinear damping in a nano-mechanical system below 1 K.
