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N9621B MAC Mode III

Product Status: Discontinued | Currently Supported
This product is no longer available

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Key Features & Specifications

  • Allows one-pass multichannel detection for EFM and KFM
  • Three configurable lock-in amplifiers afford superb versatility
  • Multifrequency range up to 6 MHz, allowing higher harmonic modes
  • Patented technique optimized for high-resolution imaging in liquids

Description

Keysight’s patented MAC Mode III is a gentle, nondestructive AFM technique that has been designed for imaging extremely delicate samples in liquid or air. Built on field-proven technology, MAC Mode III extends AFM capabilities and is particularly useful in application areas that require high resolution and force sensitivity, such as biology, polymers, and surface science.

Built in Q-control and three user-configurable lock-in amplifiers are provided, affording researchers accuracy and faster time to results. MAC Mode III has a wider operating frequency range (up to 6 MHz) that enables higher harmonic imaging. These imaging modes provide contrast differences that aren’t seen with the usual fundamental amplitude and phase signals, enabling scientists to collect additional information about mechanical properties of the sample surface.

MAC Mode III allows single-pass imaging for Kelvin force microscopy (KFM) and electric force microscopy (EFM). Simultaneous, high-accuracy topography, amplitude, and surface potential measurements are facilitated by a servo-on-height cantilever approach that is not susceptible to scanner drift.

MAC Mode III uses a magnetic field to drive a cantilever coated with a paramagnetic film, yielding precise control over oscillation amplitude and, thus, excellent force regulation. Since only the tip is driven, the signal-to-noise ratio is greatly improved and there is a consequent significant improvement in fluid imaging.

MAC Mode III can be operated simultaneously with...

The acoustic AC (AAC) mode option is included with MAC Mode III.