High-sensitivity piezoelectric tube sensor for shear-force detection in scanning near-field optical microscopy

Lindfors, Klas; Kapulainen, Markku; Ryytty, P.; Kaivola, Matti

doi:10.1016/j.optlastec.2004.01.018

Cited by 6 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it was found that the HSAFM imaging signals are highly asynchronous with the scan drive voltage, because a phase-lag φ(ω) exists between the drive voltage and the movement of the scanner, resulting in image distortion. This phase-lag φ(ω) can be described by the dynamic equation (4) of a bimorph beam [27][28][29], where x is the displacement of the scanner, m is the effective mass of the vibrating system and γ is the damping constant. ω 0 is the resonance…”

Section: Image Distortion Caused By Phase-lagmentioning

confidence: 99%

Resonance-type bimorph-based high-speed atomic force microscopy: real-time imaging and distortion correction

Cai¹,

Zhao²,

Gong³

et al. 2014

Meas. Sci. Technol.

View full text Add to dashboard Cite

Resonance-type bimorph-based high-speed atomic force microscopy (HSAFM) capable of operating in the sample-scan and tip-scan modes is presented in this paper. The working principle of the high-speed scanner, the experimental setup, and the data collection system are described in detail. The main characteristic of the high-speed scanner is the use of a piezoelectric bimorph, where one of the piezoelectric layers is used to drive the bimorph beam to scan at a high speed and the other monitors the bimorph vibration. Image distortions due to the phase-lag and sinusoidal scanning are analyzed and simulated. The correction methods for the compensation of the phase-lag and nonlinear movement are proposed based on data shift and nonlinear mapping relations, respectively. The HSAFM imaging at the maximum rate of ~30 frames per second is demonstrated with our data collection and correction program. The image distortions caused by the phase-lag and sinusoidal scanning are effectively eliminated in real-time. This work would provide useful methods for the development of HSAFM and applications in the observation of dynamic processes at nanoscale.

show abstract

Section: Image Distortion Caused By Phase-lagmentioning

confidence: 99%

Resonance-type bimorph-based high-speed atomic force microscopy: real-time imaging and distortion correction

Cai¹,

Zhao²,

Gong³

et al. 2014

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…10) In SNOM, the distance between the probe and the specimen is controlled by a shear force technique based on the detection of a shift in the frequency of the vibrating probe. 11) However, the frequency shift of the probe can be affected by the thermal effect because of laser light absorption, which leads to a change in sensitivity. Therefore, some researchers have studied the thermal behavior of the SNOM probe.…”

Section: Introductionmentioning

confidence: 99%

Laser-Induced Thermal Effect on Sensitivity of Scanning Near-Field Optical Microscope Probe

Lee¹,

Yang²,

Chang³

2010

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

In this study, the laser-induced thermal effect on the sensitivity of a scanning near-field optical microscope (SNOM) tapered probe is analyzed. In the analysis, the thermal effect can be considered as an axial force and is dependent on the temperature distribution of the probe. The Rayleigh–Ritz method is used to determine the sensitivity of the probe. According to the analysis, the sensitivity of the first three vibration modes increases when the thermal effect is taken into account. When the contact stiffness is low, the thermal effect on the sensitivity of mode 1 is particularly significant. The sensitivity of mode 1 increases with increasing taper angle and coating thickness of the probe. In addition, the effect of a SNOM probe with three different coating materials, Al, Au, and Ag, on the sensitivity of mode 1 is studied. The result shows that the highest sensitivity is obtained for the probe with an Al coating, whereas it is the lowest with a Au coating.

show abstract

Optical image contrast enhancement in near-field optics induced by water condensation

2013

View full text Add to dashboard Cite

High-sensitivity piezoelectric tube sensor for shear-force detection in scanning near-field optical microscopy

Cited by 6 publications

References 28 publications

Resonance-type bimorph-based high-speed atomic force microscopy: real-time imaging and distortion correction

Resonance-type bimorph-based high-speed atomic force microscopy: real-time imaging and distortion correction

Laser-Induced Thermal Effect on Sensitivity of Scanning Near-Field Optical Microscope Probe

Optical image contrast enhancement in near-field optics induced by water condensation

Contact Info

Product

Resources

About