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High Resolution Non-Contact Optical Profilometry using Advanced Piezo Stages from nPoint
California based Zeta Instruments Inc. manufactures non-contact optical profilometers for a variety of research and industrial applications. The optical profilers are required to have a compact footprint while meeting stringent repeatability and accuracy requirements in a noisy semiconductor manufacturing fab or a busy academic lab. Measurements such as contact bumps...
Multiphoton microscopy provides optical sectioning capabilities to depths of greater than 1mm at diffraction limit resolution. Compared to confocal, multiphoton microscopy allows deeper imaging into tissue, making it the technique of choice for thicker tissue specimens, such as brain slices or tumor or lymph node explants, as well is intravital...
Components of a Nanopositioning System
Nanopositioning systems provide the opportunity to enable many advanced applications. Their use has spread from AFMs to optics and multiple new technologies. While selecting a system can be complex at times, there are three main components that work together to provide motion on the nanoscale. Each component will briefly be...
Piezoelectric Actuators Used in Flexure Stages
nPoint uses piezoelectric stack actuators to provide motion to its flexure stages. These stacks are often referred to as “piezos” and this is what puts the “piezo” in “piezo stage.” Actuators are stacked with multiple piezo tiles to provide larger displacement and hence the term “piezo stack”. The material used...
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Custom Programming for Nanopositioning Stages
nPoint uses digital control electronics in its nanopositioning systems. Electrical, mechanical, and software engineering are all done in-house. This flexibility allows for custom development to meet the requirements set forth by an external user. The following provides an example of custom software features programmed at nPoint directly for a customer...
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Trajectory Generation with Nanopositioning Systems
Trajectory Generation is the latest feature on nPoint’s nPControl software environment for the LC.400 Series Nanopositioning Controllers. The trajectory generation interface allows a user to scan through up to 500 position coordinates, with velocity and dwell time specified individually for each positioning event. These coordinates are downloaded to the controller...
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