Extending Atomic Force Microscopy Capabilities

Agilent Technologies introduced the Magnetic AC Mode III (MAC Mode III) controller, which is particularly useful in areas that require high resolution and force sensitivity, such as biology, polymers and surface science. Built on field-proven technology, this technique is designed for imaging delicate samples in liquid or air. The controller offers three user-configurable lock-in amplifiers, affording researchers versatility, higher accuracy and quicker time to results. It has a wider operating frequency range up to 6 MHz. Built-in Q control further enhances the resonance peak. Higher harmonic imaging provides contrast beyond that seen with fundamental amplitude and phase signals, allowing scientists to collect additional information about mechanical properties of the sample surface.