Results 51 to 60 of about 7,101 (242)
Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid 4He [PDF]
, 2012 We present measurements of the drag forces on quartz tuning forks oscillating at low velocities in normal and superfluid 4He. We have investigated the dissipative drag over a wide range of frequencies, from 6.5 to 600 kHz, by using arrays of forks with ...
Bradley, D. I. +10 more
core +1 more source
Low-temperature, high-resolution magnetic force microscopy using a quartz tuning fork
, 2005 We have developed a low temperature, high resolution magnetic force microscope (MFM) using a quartz tuning fork that can operate in a magnetic field. A tuning fork with a spring constant of 1300 N/m mounted with a commercial MFM cantilever tip was used ...
Cadden-Zimansky, Paul +2 more
core +1 more source
Dynamics of quartz tuning fork force sensors used in scanning probe microscopy
, 2010 We have performed an experimental characterization of the dynamics of oscillating quartz tuning forks which are being increasingly used in scanning probe microscopy as force sensors.
A Castellanos-Gomez +6 more
core +1 more source
, 2011 We have studied the dynamics of quartz tuning fork resonators used in atomic force microscopy taking into account mechanical energy dissipation through the attachment of the tuning fork base.
A. Castellanos-Gomez +22 more
core +1 more source
Variable - temperature scanning optical and force microscope [PDF]
, 2004 The implementation of a scanning microscope capable of working in confocal, atomic force and apertureless near field configurations is presented. The microscope is designed to operate in the temperature range 4 - 300 K, using conventional helium flow ...
Betzig E. +4 more
core +3 more sources
, 2007 Higher harmonic modes in nanoscale silicon cantilevers and microscale quartz tuning forks are detected and characterized using a custom scanning optical homodyne interferometer.
Bashir, Rashid +5 more
core +1 more source
Carbon fibre tips for scanning probe microscopy based on quartz tuning fork force sensors
, 2010 We report the fabrication and the characterization of carbon fibre tips for their use in combined scanning tunnelling and force microscopy based on piezoelectric quartz tuning fork force sensors.
A Castellanos-Gomez +13 more
core +1 more source
Advanced Functional Materials, EarlyView.Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez +7 more
wiley +1 more source
Influence of the Gain–Bandwidth of the Front-End Amplifier on the Performance of a QEPAS Sensor
AcousticsThe quartz tuning fork used as an acoustic sensor in quartz-enhanced photo-acoustic spectroscopy gas detection systems is usually read out by means of a transimpedance preamplifier based on a low-noise operational amplifier closed in a feedback loop. The
Luigi Lombardi +2 more
doaj +1 more source
A three million Q factor tuning fork resonator based on a vibration isolation structure
AIP Advances, 2022 The quality factor (Q factor) is one of the most important parameters for a resonant sensor since it determines the performance of the resonant system. The mass distribution imbalance caused by the fabrication error has a great impact on the anchor loss,
Zilong Feng +3 more
doaj +1 more source