Quantitative LFM with a multimode 8

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nic mullin replied on Thu, Jul 25 2013 9:32 AM

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I'm afraid it's difficult to do with any AFM.

A good and relatively recent review can be found here:

http://iopscience.iop.org/0022-3727/43/6/063001

Good luck,

Nic

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CelineHeu replied on Wed, Sep 11 2013 11:27 PM

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thanks for your answer Nic,

I was wondering if you could help me with the choice of a standard sample. I found this one.

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Celine

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nic mullin replied on Fri, Sep 13 2013 11:35 AM

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Hi Celine,

the sample you linked to is usually used for scanner calibration, as opposed to cantilever calibration, so I don't think it would be a good choice.

The standard that is typically used for the Varenberg wedge method  is the TGF11 grating from Mikromasch. I can't see it on the Mikromasch website anymore, but it appears to be available here: http://www.nanotoolstore.com/afm_accessories_samples_mikromasch.htm 

Note that this grid is not compatible with all tip shapes - it can give artifacts with low aspect ratio tips, such as those found on many silicon nitride cantilevers.

Nic