An optically actuated surface scanning probe

An optically actuated surface scanning probe.

We demonstrate the use of an extended, optically trapped probe that is capable of imaging surface topography with nanometre precision, whilst applying ultra-low, femto-Newton sized forces. This degree of precision and sensitivity is acquired through three distinct strategies. First, the probe itself is shaped in such a way as to soften the trap along the sensing axis and stiffen it in transvers...

Probe microscopy: scanning below the cell surface.

M ore and more nanoparticles are used in advanced materials, medical imaging and drug delivery, and their industrial scale production is just around the corner. The flip side of this is the risk associated with human exposure to nanoparticles, whether through unintentional inhalation or deliberate injection and ingestion. Detailed toxicity studies are needed to ensure the safe and successful us...

Modeling and Analysis of an Optically-Actuated, Bistable MEMS Device

Studying of various nanolithography methods by using Scanning Probe Microscope

The Scanning Probe Microscopes (SPMs) based lithographic techniques have been demonstrated as an extremely capable patterning tool. Manipulating surfaces, creating atomic assembly, fabricating chemical patterns, imaging topography and characterizing various mechanical properties of materials in nanometer regime are enabled by this technique. In this paper, a qualified overview of diverse lithog...

Wall-Actuated Scanning Probe(WASP) For High-Field Side Plasma Measurements On Alcator C-Mod

A new, high-field side scanning probe has been added to Alcator C-Mod's complement of edge diagnostics. The WASP is designed to provide all the benefits of a linear plunge, multi-electrode scanning probe while working from the confined space of the inner tokamak wall. The drive mechanism is an embedded coil which produces a torque with the ambient toroidal magnetic field when energized, thus al...