Instrument #1: Long Beach
This instrument is a modified TT-AFM from AFM Workshop.
It is equipped with two scanners, enabling large (low resolution ) or small (high resolution) scanners. It has an experimental liquid cell for in-situ measurements.
Here are more detailed specifications:
- Instrument Configuration: Optical lever - based sample-scanning AFM
- Sample Size: Maxmium ca. 20x20x5 mm
- Imaging Modes: vibrating (tapping), non-vibrating (contact), phase imaging, lateral force microscopy (friction force microscopy)*
- Imaging Environment: Air or Liquid* (experimental).
- Z-translation: Vertical direct drive (1micron resolution)
- XY Translation: Manual
- Video Optical Microscope: Zoom to 400X, 3 micron resolution (3M pixel camera)
- Scan Range: 70x70x17 microns or 20x20x7 microns
- Linearisation: All axes (x, y and z) with strain guages, can be turned off for enhanced signal to noise ratio.
- Z noise level: less than 0.2 Angstrom
- Vibration isolation: Passive vibration isolation, with acoustic shielding
*These features are not yet tested.
Instrument #2: San Diego
This is a Life Sciences AFM (model B) from AFM Workshop. It is a probe-scanning AFM with maximum 50 micron scan range. it is mounted on an inverted optical microscope, equipped for brightfield, phase, and fluorescence microscopy. We have both air and liquid scanning-capable probe holders. It is typically used for cell studies and other transparent samples.
Booking Schedules and Calendars:
TT-AFM - Long Beach
LS-AFM -San Diego
Here are just a few example images measured with the TT-AFM instrument on a variety of samples.
- Startup Procedure
- Shutdown Procedure
- Insertion and laser alignment of probes
- Scanning in contact "non-vibrating" mode
- Approaching in vibrating mode
- Scanning in tapping or "vibrating" mode
- Opening files: We recommend using Gwyddion version 2.22 or later.
- These protocols may be outdated, meanwhile, here is a link to the latest version of the protocols document for use of "Long Beach": TTAFM_protocols.pdf