Eigenmodes of a quartz tuning fork and their application to photoinduced force microscopy

Kim, Bongsu; Jahng, Junghoon; Khan, Ryan Muhammad; Park, Sung Min; Potma, Eric O.

doi:10.1103/physrevb.95.075440

Cited by 26 publications

(21 citation statements)

References 22 publications

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“…In order to achieve higher Q -factors and SNRs, it would in principle be advisable to use a higher mode of vibration. However, at the second in-plane mode (at ≈190 kHz) spurious other modes (see [46]) interfere, especially when the QTF is immersed in fluids. Therefore, evaluating the fundamental mode allows better overall accuracy.…”

Section: Introductionmentioning

confidence: 99%

Fluid Sensing Using Quartz Tuning Forks—Measurement Technology and Applications

Voglhuber-Brunnmaier

Niedermayer

Feichtinger

et al. 2019

Sensors

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We provide an overview of recent achievements using quartz tuning forks for sensing liquid viscosity and density. The benefits of using quartz crystal tuning forks (QTFs) over other sensors are discussed on the basis of physical arguments and issues arising in real world applications. The path to highly accurate and robust measurement systems is described and a recently devised system considering these findings is presented. The performance of the system is analyzed for applications such as the mixing ratio measurement of fuels, diesel-soot contamination for engine oil condition monitoring, and particle size characterization in suspensions. It is concluded that using properly designed systems enables a variety of applications in industry and research.

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Section: Introductionmentioning

confidence: 99%

Fluid Sensing Using Quartz Tuning Forks—Measurement Technology and Applications

Voglhuber-Brunnmaier

Niedermayer

Feichtinger

et al. 2019

Sensors

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“…Two photon-induced luminescence (TPL) microscopy has also been used to map the resonant plasmonic nanostructures; however, the spatial resolution for this system is lower as compared to the tip-based scanning probe microscopy techniques. 14,15 measurement of laterally induced forces at nanoscale, 26,27 mapping nanoscale refractive index contrast, 28 nanoscale imaging of block copolymers 29 and all-polymer organic solar cells 30 at IR frequencies, and near field mapping of plasmonic nanostructures 31 and bimetallic heterodimers. 32 The detection of the photoinduced force in the PiFM system is dependent on a special probe-tip that has sufficiently high electromagnetic response.…”

mentioning

confidence: 99%

Near-field nanoprobing using Si tip-Au nanoparticle photoinduced force microscopy with 120:1 signal-to-noise ratio, sub-6-nm resolution

Rajaei¹,

Almajhadi²,

Zeng³

et al. 2018

Opt. Express

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A nanoscopy technique that can characterize light-matter interactions with ever increasing spatial resolution and signal-to-noise ratio (SNR) is desired for spectroscopy at molecular levels.Photoinduced force microscopy (PiFM) with Au-coated probe-tips has been demonstrated as an excellent solution for this purpose. However, its accuracy is limited by the asymmetric shape of the Au-coated tip resulting in tip-induced anisotropy. To overcome such deficiencies, we propose a Si tip-Au nanoparticle (NP) combination in PiFM. We map the near-field distribution of the Au NPs in various arrangements with an unprecedented SNR of up to 120, a more than 10-fold improvement compared to conventional optical near-field techniques, and a spatial resolution down to 5.8 nm, smaller than 1/100 of the wavelength, even surpassing the tip-curvature limitation. We also map the beam profile of an azimuthally polarized beam (APB) with an excellent symmetry. The proposed approach can lead to the promising single molecule spectroscopy.Recently the photoinduced force microscopy (PiFM) technique has been developed as a superior near-field optical imaging and spectroscopy technique with both high SNR and nanoscale spatial resolution based on a modified atomic force microscopy (AFM) system. 16 Compared to s-SNOM in which the excitation is in near field and the detection is in the far field, in PiFM both the excitation and detection take place in near field which effectively suppresses the background scattering photons from the far field. 17,18 As a result, PiFM has been widely used for stimulated Raman spectroscopy, 19,20 nanoscale mapping of tightly focused electromagnetic beams 21,22 and propagating surface plasmon polaritons, 23 enantioselectivity of chiral nanostructures, 24,25

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“…Quartz is an important mineral that has wide applications as a raw material in various fields in industry, such as glass, ceramics, and medicine [1][2][3]. It is the main component mineral of a series of important mineral resources such as siliceous phosphate ore, iron ore, tungsten ore, fluorite, and mica.…”

Section: Introductionmentioning

confidence: 99%

Structural and Electronic Properties of Different Terminations for Quartz (001) Surfaces as Well as Water Molecule Adsorption on It: A First-Principles Study

Wang

Zhang

et al. 2018

Minerals

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Structural and electronic properties of Si termination, O-middle termination, and O-rich terminations of a quartz (001) surface as well as water molecule adsorption on it were simulated by means of density functional theory (DFT). Calculated results show that the O-middle termination exposing a single oxygen atom on the surface is the most stable model of quartz (001) surface, with the lowest surface energy at 1.969 J·m −2 , followed by the O-rich termination and Si termination at 2.892 J·m −2 and 2.896 J·m −2 , respectively. The surface properties of different terminations mainly depend on the surface-exposed silicon and oxygen atoms, as almost all the contributions to the Fermi level (E F ) in density of states (DOS) are offered by the surface-exposed atoms, especially the O2p state. In the molecular adsorption model, H 2 O prefers to adsorb on the surface Si and O atoms, mainly via O 1 -H 1 bond at 1.259 Å and Si 1 -O w at 1.970 Å by Van der Waals force and weak hydrogen bond with an adsorption energy of −57.89 kJ·mol −1 . In the dissociative adsorption model, the O-middle termination is hydroxylated after adsorption, generating two new Si-OH silanol groups on the surface and forming the O w H 2 ···O 4 hydrogen bond at a length of 2.690 Å, along with a large adsorption energy of −99.37 kJ·mol −1 . These variations in the presence of H 2 O may have a great influence on the subsequent interfacial reactions on the quartz surface.

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Eigenmodes of a quartz tuning fork and their application to photoinduced force microscopy

Cited by 26 publications

References 22 publications

Fluid Sensing Using Quartz Tuning Forks—Measurement Technology and Applications

Fluid Sensing Using Quartz Tuning Forks—Measurement Technology and Applications

Near-field nanoprobing using Si tip-Au nanoparticle photoinduced force microscopy with 120:1 signal-to-noise ratio, sub-6-nm resolution

Structural and Electronic Properties of Different Terminations for Quartz (001) Surfaces as Well as Water Molecule Adsorption on It: A First-Principles Study

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