The need for higher compositional resolution and sensitivity has led to exploration of imaging with higher harmonics and/or flexural or torsional cantilever modes.  More recently, the AFM is experiencing the evolution from single to multifrequency excitation and detection schemes.

The Multifrequency AFM Tutorial will be held October 15th in conjunction with the 4th Multifrequency AFM Conference, covering a variety of topics by leading researchers in the field.   Demonstration on the Cypher™ AFM will occur after the lectures.

Syllabus

9:00am    Introduction to Multifrequency AFM
                Roger Proksch, Asylum Research
                •    Historical perspectives and practical applications
                •    Cantilever dynamics – simulations, theory and experiments
                •    Quantitative mapping of material properties
                    -    SNR and calibration

9:45        Bimodal Techniques
                Ricardo Garcia, IMM, CSIC
                •    Amplitude modulation AFM in air and liquid–forces, sensitivity and resolution
                •    Beyond single excitation/detection:  bimodal AFM

10:30        Break

10:45        Interactive Dynamic AFM Simulation Code
                 Horacio Vargas, IMM, CSIC

11:15       Nanomechanical Sensing with Higher Eigenmode Frequency-based Techniques
                Santiago Solares, University of Maryland
                 •     Frequency modulation
                        -     Constant amplitude case
                        -     Constant excitation case
                •    Band excitation
                        -     Single-eigenmode
                        -     Dual-eigenmode (bimodal)

12:00       Multifrequency AFM Demonstration on the Cypher AFM
                •    Probing different modes – tuning and mode shape measurements
                •    Surface tunes
                •    Noise vs nonlinearity
                •    Bimodal contrast on ternary or other sample
                        -    Above, at and below resonance
                        -    AM-FM

Registration and Contact Information
Registration can be found on the conference website. Tutorial fee is 20€.  Class size will be limited to 30 participants.  For additional information on the conference and tutorial, contact Anna Tello.

Download the Tutorial Syllabus

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