Mad City Labs
The Mad City Labs near-field scanning optical microscope (MCL-NSOM) leverages MCL expertise with high-resolution scanning probe microscopy instrumentation and closed-loop nanopositioning systems to design an NSOM that meets the performance criteria and versatility demanded by leading researchers. The MCL-NSOM is an aperture NSOM built on a Mad City Labs RM2 inverted optical microscope, which allows users to convert to apertureless NSOM, atomic force microscopy (AFM), and fluorescence optical microscopy. The MCL-NSOM includes XYZ closed-loop nanopositioning for sample and fiber scanning, providing subnanometer precision and exceptional low-noise performance. Six axes of automated positioning are provided, including independent automation for fiber alignment to the optical axis, and are controlled with LabVIEW-based software. The MCL-NSOM includes a fiber launch with excitation source, alignment camera, and detection avalanche photodiode (APD), but can also easily accommodate user ancillary excitation and detection optics, further enhancing the versatility of this microscope.