WaveMode Cantilever WM20PTD
WM20PTD Probes are used for imaging at higher speeds in photothermal off-resonance tapping (WaveMode) and dynamic mode (CleanDrive). The probes provide highest resolution down to the atomic structure and allow nanomechanical measurements on stiffer samples such as soft metal alloys. The probes are compatible with air and liquid environments. The reflex side of the cantilever is coated with metal layers optimized for efficient photothermal excitation. The coating is highly reflective for standard optical beam deflection AFMs.
Sold in boxes of 10.
Download Datasheet (PDF)
Cantilever Specifications
Shape | Triangular | ||
Material | Silicon Nitride | ||
Coating (Top side) | Metal coating, optimized for photothermal excitation and laser readout | ||
Min. | Typical | Max. | |
Length (µm) |
25 |
28 |
31 |
Width (µm) |
32 |
35 |
38 |
Thickness (µm) |
0.54 |
0.60 |
0.66 |
Resonance frequency in air (kHz) |
900 |
1200 |
2100 |
Spring constant (N/m) |
9 |
20 |
27 |

Tip Specifications
Shape | Pyramidal |
Height (µm) |
3 - 8 |
Tip radius (nm) |
Typically ≤ 5 nm |
Material |
Si |
Coating |
None |

AFM topography map of calcite atomic lattice in ultrapure water acquired in CleanDrive dynamic mode.
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