6730.2:
Magnetic resonance imaging with local probes (MRI-SPM)
Abstract
The supplement is intended to fulfill the additional deliverables of the MRI-SPM. The main objective is the construction of a magnetic resonance force microscope that detects the spin resonance of small volumes with a sensitivity exceeding the one in conventional inductive detection by several orders of magnitude. Force detection with high Q-factors and low spring constants is performed. Accurate digital radio frequency field generation is implemented. Local NMR-experiments are done. A main goal of the project is to perform NMR/ESR experiments without field gradients, where the torque is measured with a microfabricated spring. Due to the improved sensitivity of mechanical detection, small sample quantities, (less than micrograms), e.g., biopolymers, can be analyzed in the spectroscopic mode.