title: A response to the commentary on the paper "A comprehensive modeling and vibration analysis of AFM microcantilevers subjected to nonlinear tip-sample interaction forces" by Sohrab Eslami and Nader Jalili".
abstract: Recently we received a commentary by Passian et al. [1] on our previously published paper [2] in the Ultramicroscopy. Although the commentators, who are also our co-authors in an earlier papers in similar line (see [3,5]), claimed to discuss and better explain the concept of "virtual resonance" in [3], they went on to conclude that the experimental results and findings in [3] have been misrepresented in [2]. We have theoretically considered a general semi-empirical nonlinear interaction force consisting of different terms with which the dynamic response of the system could be very dependent. Here, we highlight these types of dependencies on the amplitude at the difference frequency. Due to the nature of this communication, we would like to limit our response to matters of fact to the authors of the commentary.
authors.affiliation: Engineering Research Center for Computer Integrated Surgical Systems and Technology, Johns Hopkins University, Baltimore, Maryland 21218, USA.
authors.forename: Sohrab
authors.initials: S
authors.lastname: Eslami
authors.forename: Nader
authors.initials: N
authors.lastname: Jalili
keywords: AFM microcantilevers; Subsurface imaging; Tip–sample interaction forces