The alpha300 S is a user-friendly Scanning Nearfield Optical Microscope (SNOM) that combines the advantages of SNOM, confocal microscopy and Atomic Force Microscopy in a single instrument. Switching between the different modes can be easily done by rotating the objective turret. The alpha300 S uses unique micro-fabricated SNOM cantilever sensors for optical microscopy with spatial resolution beyond the diffraction limit.
The WITec Scanning Near-field Optical Microscope alpha300 S operates using a unique near-field objective. It is mounted in the objective turret and provides access to SNOM or AFM. The micro-fabricated SNOM sensors are held magnetically at the end of the objective’s arm, enabling simultaneous observation of the cantilever and sample. For quick cantilever alignment, the arm can be moved in all three dimensions by an integrated highly-precise inertial drive. The movements are controlled by the WITec Control software, which also provides convenient alignment routines. The objective not only focuses the excitation laser beam, but also the beam-deflection laser for distance control. Highly focused, ultra-stable optics guarantee low-noise measurements without interference from the two laser systems. Using standard AFM cantilevers, the alpha300 S includes full AFM capability.
- Spatial resolution beyond the diffraction limit (ca. 60 nm laterally)
- Unique patented SNOM sensor technique
- Ease-of-use in air and liquids
- Various Atomic Force Microscopy modes included
- Non-destructive imaging technique with minimal, if any, sample preparation
- Upgradeable with confocal Raman imaging in one microscope
The WITec Atomic Force Microscope alpha300 A is a reliable, high-quality nano-imaging system integrated with a research-grade optical microscope and provides superior optical access, easy cantilever alignment and high-resolution sample survey. WITec Atomic Force Microscopes are developed and designed to allow combination with other imaging techniques such as confocal Raman imaging. All imaging techniques can […]
The imaging capabilities of the alpha300 R fulfill the highest requirements of confocal Raman imaging with superior performance in speed, sensitivity and resolution. These unique characteristics have established the alpha300 R the preeminent confocal Raman imaging system on the market. While long recognized as the state-of-the-art imaging system, ongoing development resulting from WITec’s innovative spirit […]