NANOSENSORS™

DT-FMR

Diamond coated Tip - Force Modulation Mode - Reflex Coating

The DT-FMR probe is designed for force modulation microscopy. The force constant of this cantilever type spans the gap between contact and non-contact mode and is specially tailored for the force modulation mode. The FM probe serves also as a basis for magnetic coatings (MFM).Furthermore non-contact or tapping mode operation is possible with the FM sensor but with reduced operation stability.

For applications that require hard contact between tip and sample this sensor offers a real diamond tip-side coating. This coating features extremely high wear resistance due to the unsurpassed hardness of diamond. The typical macroscopic tip radius of curvature lies in the range between 100 and 200 nm. Nanoroughnesses in the 10 nm regime improve the resolution on flat surfaces.
The probe offers unique features:
- real diamond coating
- high mechanical Q-factor for high sensitivity
- alignment grooves on backside of silicon holder chip
- precise alignment of the cantilever position (within +/- 2 µm) in conjunction with the usage
  of the alignment chip
- compatible with PointProbe® Plus XY-Alignment Series
The DT Diamond Coating is an approximately 100 nm thick coating of polycrystalline diamond on the tip-side of the cantilever leading to an unsurpassed hardness of the tip. The raman spectrum of the coating verifies the real diamond.
DT-FMR Front View  DT-FMR Graphic
The reflex coating is an approximately 30 nm thick aluminum coating on the detector side of the cantilever which enhances the reflectivity of the laser beam by a factor of about 2.5. Furthermore it prevents light from interfering within the cantilever. The virtually stress-free coating is bending the cantilever less than 3.5% of the cantilever length.
Cantilever data:
Technical Data Nominal Value Specified Range
Thickness /µm 3 2.0 - 4.0
Mean Width /µm 28 20 - 35
Length /µm 225 215 - 235
Force Constant /(N/m) 2.8 0.5 - 9.5
Resonance Frequency /kHz 75 45 - 115
Order codes and shipping units:
Order Code Quantity Data Sheet Coating
DT-FMR-10 10 of all probes diamond and reflex
DT-FMR-20 20 of all probes diamond and reflex
DT-FMR-50 50 without diamond and reflex
DT-FMR-W > 370 of up to 32 probes diamond and reflex
For further information please contact your local distributor or NANOSENSORS™ directly.
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