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We introduce a nanomechanical platform for fast and sensitive measurements of the spectrally-resolved optical dielectric function of 2D materials. At the heart of our approach is a suspended 2D material integrated into a nanomechanical…

Masers have the potential to transform medical sensing and boost qubit readout detection due to their superb low-noise amplification. The negatively-charged nitrogen vacancy (NV-) diamond maser is the only continuous-wave solid-state maser…

Quantum Physics · Physics 2024-04-09 Wern Ng , Yongqiang Wen , Neil Alford , Daan M. Arroo

We experimentally demonstrate a method for measuring correlations of wideband magnetic signals with spatial resolution below the optical diffraction limit. Our technique employs two nitrogen-vacancy (NV) centers in diamond as nanoscale…

Levitated ferromagnetic systems are expected to have significant potential in precision magnetic field sensing by leveraging mechanical isolation to minimize mechanical contact and associated noise. Here, we report the implementation of a…

Quantum Physics · Physics 2026-03-03 Ren Yichong , Wu Lielie , Broer Wijnand , Xue Fei , Huang Pu , Du JiangFeng

We explore the viability of laboratory-scale mechanical resonators as detectors for ultralight scalar dark matter. The signal we investigate is an atomic strain due to modulation of the fine structure constant and the lepton mass at the…

Instrumentation and Methods for Astrophysics · Physics 2020-04-22 Jack Manley , Russell Stump , Dalziel Wilson , Daniel Grin , Swati Singh

The excellent electronic and mechanical properties of graphene provide a perfect basis for high performance flexible electronic and sensor devices. Here, we present the fabrication and characterization of flexible graphene based Hall…

Applied Physics · Physics 2017-08-02 Zhenxing Wang , Mehrdad Shaygan , Martin Otto , Daniel Schall , Daniel Neumaier

Dynamic positioning in acoustic levitation typically depends on active control of the transducers phases, which necessitates complex driving electronics. While mechanically actuated reflectors offer a simpler alternative, achieving…

Increasing sensitivity and signal to noise ratios of conventional wave sensors is an interesting topic in structural health monitoring, medical imaging, aerospace and nuclear instrumentation. Here, we report the concept of a gradient…

Materials Science · Physics 2016-05-27 Y. Y. Chen , R. Zhu , M. V. Barnhart , G. L. Huang

Biomonitoring wearable sensors based on two-dimensional nanomaterials have lately elicited keen research interest and potential for a new range of flexible nanoelectronic devices. Practical nanomaterial-based devices suited for real-world…

We present an experimental procedure, based on Meissner effect levitation of neodymium ferromagnets, as a method of measuring the gravitational interactions between mg masses. The scheme consists of two superconducting lead traps, with a…

General Relativity and Quantum Cosmology · Physics 2021-11-17 Chris Timberlake , Andrea Vinante , Francesco Shankar , Andrea Lapi , Hendrik Ulbricht

Pressure alters the physical, chemical and electronic properties of matter. The development of the diamond anvil cell (DAC) enables tabletop experiments to investigate a diverse landscape of high-pressure phenomena ranging from the…

Carbon nanotubes and graphene allow fabricating outstanding nanomechanical resonators. They hold promise for various scientific and technological applications, including sensing of mass, force, and charge, as well as the study of quantum…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 A. Eichler , J. Moser , J. Chaste , M. Zdrojek , I. Wilson-Rae , A. Bachtold

Mechanical resonators based on low-dimensional materials are promising for force and mass sensing experiments. The force sensitivity in these ultra-light resonators is often limited by the imprecision in the measurement of the vibrations,…

Mesoscale and Nanoscale Physics · Physics 2016-09-22 Peter Weber , Johannes Güttinger , Adrien Noury , Jorge Vergara-Cruz , Adrian Bachtold

We propose and experimentally demonstrate a novel detection method that significantly improves the precision of real-time measurement of the three-dimensional displacement of a levitated dipolar scatterer. Our technique relies on spatial…

Nitrogen-vacancy quantum defects in diamond offer a promising platform for magnetometry because of their remarkable optical and spin properties. In this Letter, we present a high-sensitivity and wide-bandwidth fiber-based quantum…

Owing to the mass scale associated with the scalar longitudinal mode signal of gravitational wave predicted by modified theories of gravity, it should propagate at a subluminal speed and with a different frequency compared to the massless…

General Relativity and Quantum Cosmology · Physics 2024-10-21 Rakesh Das , Anirban Saha

When a contaminant diffuses on the surface of a nanomechanical resonator, the motions of the two become correlated. Despite being a high-order effect in the resonator-particle coupling, such correlations affect the system dynamics by…

Mesoscale and Nanoscale Physics · Physics 2016-03-15 Christin Rhén , Andreas Isacsson

A self-oscillating magnetometer based on the nonlinear magneto-optical rotation effect with separate modulated pump and unmodulated probe beams is demonstrated. This device possesses a bandwidth exceeding $1\khz$. Pump and probe are…

Atomic Physics · Physics 2009-11-13 J. M. Higbie , E. Corsini , D. Budker

Levitated optomechanics has great potentials in precision measurements, thermodynamics, macroscopic quantum mechanics and quantum sensing. Here we synthesize and optically levitate silica nanodumbbells in high vacuum. With a linearly…

Applied Physics · Physics 2018-07-26 Jonghoon Ahn , Zhujing Xu , Jaehoon Bang , Yu-Hao Deng , Thai M. Hoang , Qinkai Han , Ren-Min Ma , Tongcang Li

We propose a scheme to measure the mass of a single particle using the nonlinear response of a 2D nanoresonator with degenerate eigenmodes. Using numerical and analytical calculations, we show that by driving a square graphene nanoresonator…

Mesoscale and Nanoscale Physics · Physics 2010-10-11 J. Atalaya , J. M. Kinaret , A. Isacsson