A Unique Self-Sensing, Self-Actuating AFM Probe at Higher Eigenmodes

A Unique Self-Sensing, Self-Actuating AFM Probe at Higher Eigenmodes

With its unique structure, the Akiyama probe is a type of tuning fork atomic force microscope probe. The long, soft cantilever makes it possible to measure soft samples in tapping mode. In this article, some characteristics of the probe at its second eigenmode are revealed by use of finite element analysis (FEA) and experiments in a standard atmosphere. Although the signal-to-noise ratio in thi...

16×2 Thermally Actuating and Sensing Probe Array

This paper developed an active scanning probe array. The probe array consists of 16×2 probes thermally actuating and sensing. The 32 probes are integrated with Ti/Pt temperature sensors and bimorph thermal actuators. Each probe is a Si3N4 cantilever equipped with a sharp nano scale pyramid tip at its free end. When one of the probes is actuated, its neighboring probes can provide temperature se...

Bio-Inspired Self-Actuating Composite Materials

Self-actuating biosensor using a piezoelectric cantilever and its optimization

This paper presents a self-actuating biosensor based on the piezoelectric cantilever optimized by Taguchi method for the label-free detection of specific biomoleculars. Until now, even though the optimisation of the cantilever-based biosensors have been performed by changing dimensions one by one, few researches have performed the geometric optimisation considering the overall configuration of ...

Multimode Q Control in Tapping-Mode AFM: Enabling Imaging on Higher Flexural Eigenmodes

Numerous dynamic atomic force microscopy (AFM) methods have appeared in recent years, which make use of the excitation and detection of higher order eigenmodes of the microcantilever. The ability to control these modes and their responses to excitation is believed to be the key to unraveling the true potential of these methods. In this paper, we highlight a multimode Q control method that exhib...