Ryan Wagner

Ryan Wagner

Research Assistant Professor

School of Mechanical Engineering
Purdue University
585 Purdue Mall
West Lafayette, IN 47907-2088

Office: ME 2149


  • Ph.D. Purdue University, 2014
  • B.S. Purdue University, 2008

Research Interests

  • Scanning Probe Microscopy
  • Metrology
  • Optomechanics
  • Mass spectrometry
  • Contact mechanics

Fundamental Research Area(s)

Application Area(s)

Awards and Recognitions

  • National Research Council, Postdoctoral Fellowship, 2014

Selected Publications

S. S. Cheema et al., "Enhanced ferroelectricity in ultrathin films grown directly on silicon," Nature, vol. 580, no. 7804, pp. 478-482, 2020.

P. N. Ciesielski et al., "Nanomechanics of cellulose deformation reveal molecular defects that facilitate natural deconstruction," Proceedings of the National Academy of Sciences, vol. 116, no. 20, pp. 9825-9830, 2019.

R. Wagner, F. Guzman, A. Chijioke, G. K. Gulati, M. Keller, and G. Shaw, "Direct measurement of radiation pressure and circulating power inside a passive optical cavity," Optics Express, vol. 26, no. 18, pp. 23492-23506, 2018.

R. Wagner and J. Killgore, "Reconstructing the distributed force on an atomic force microscope cantilever," Nanotechnology, vol. 28, no. 10, p. 104002, 2017.

R. Wagner, R. J. Moon, and A. Raman, "Mechanical properties of cellulose nanomaterials studied by contact resonance atomic force microscopy," Cellulose, vol. 23, no. 2, pp. 1031-1041, 2016.

R. Wagner, T. Woehl, R. Keller, and J. Killgore, "Detection of atomic force microscopy cantilever displacement with a transmitted electron beam," Applied Physics Letters, vol. 109, no. 4, p. 043111, 2016.

R. Wagner, J. P. Killgore, R. C. Tung, A. Raman, and D. C. Hurley, "Vibrational shape tracking of atomic force microscopy cantilevers for improved sensitivity and accuracy of nanomechanical measurements," Nanotechnology, vol. 26, no. 4, p. 045701, 2015.

R. Wagner and J. P. Killgore, "Photothermally excited force modulation microscopy for broadband nanomechanical property measurements," Applied Physics Letters, vol. 107, no. 20, p. 203111, 2015.

R. Wagner, B. R. Pittendrigh, and A. Raman, "Local elasticity and adhesion of nanostructures on Drosophila melanogaster wing membrane studied using atomic force microscopy," Applied Surface Science, vol. 259, pp. 225-230, 2012.

R. Wagner, R. Moon, J. Pratt, G. Shaw, and A. Raman, "Uncertainty quantification in nanomechanical measurements using the atomic force microscope," Nanotechnology, vol. 22, no. 45, p. 455703, 2011.