NIST logo
*
Bookmark and Share

Ryan Tung

Micro/Research Interests:

Fluid-structure interactions in microsystems, dynamics and vibrations in micro/nano-systems, laser Doppler Vibrometry.

Awards and Honors
  • NIST National Research Council Postdoctoral Fellowship
  • University of Nevada, Reno, Summa cum Laude, With Honors in Engineering
  • UNR Bretzlaff Foundation Scholarship, 2003-2006
  • Millennium Scholarship, 2002-2006
  • UNR May Foundation, 2002-2006

Publications

Tung, R.C., Killgore, J.P., and Hurley, D.C.  Hydrodynamic corrections to contact resonance atomic force microscopy measurements of viscoelastic loss tangent. Rev. Sci. Instr. Vol. 84, 073703, 2013.

Tung, R.C., Garg, A., Kovacs, A., et al. Simultaneous Measurement of Residual Stress, Curvature, and Boundary Compliance of Doubly Clamped MEMS Beams from their Vibration Response. J. Micro Mech. Microeng. Vol. 23, 045009, 2013.

Fruehling, A., Tung, R.C., Peroulis, D., and Raman, A., Dynamic Bounce Phenomena in RF MEMS Switches PART I: In-situ Monitoring, J. MEMS, Submitted 2012.

Tung, R.C., Fruehling, A., Peroulis, D., and Raman, A. Dynamic Bounce Phenomena in RF MEMS Switches- PART II: Multiple Timescales and Modeling. J. MEMS Submitted 2012.

Tung, R.C., Lee, J.W., Sumali H., et al. Non-monotonic pressure dependence of resonant frequencies of microelectromechanical systems supported on squeeze films. J.Micro Mech. Microeng. Vol. 21, 025003, 2011.

Tung, R., Wutscher, T., Martinez-Martin, D., Reifenberger, R., Giessbl, F., and Raman, A. Higher-order eigenmodes of qPlus sensors for high resolution dynamic atomic force microscopy. Journal of Applied Physics, Vol. 107, 104508, 2010.

Tung, R., Jana, A., and Raman, A. Hydrodynamic Loading of Microcantilevers Oscillating Near Rigid Walls. Journal of Applied Physics, Vol. 104, 114905, 2008.

Biedermann, L., Tung, R., Raman, A., Reifenberger, R., Yazdanpanah, M., and Cohn, R. Characterization of silver-gallium nanowires for force and mass sensing applications. Nanotechnology, Vol. 21, 305701, 2010.

Biedermann, L., Tung, R., Reifenberger, R., and Raman, A. Flexural vibration spectra of carbon nanotubes measured using laser Doppler vibrometry. Nanotechnology, Vol. 20, 035702, 2009.

Lee, J. W., Tung, R., Raman, A., Sumali, H., Sullivan, J.P. Squeeze-film damping of flexible microcantilevers at low ambient pressures: theory and experiment. Journal of Micromechanics and Microengineering, Vol. 19, 105029, 2009.

Bidkar, R. Tung, R., Alexeenko, A., Sumali, H., and Raman, A. Unified theory of gas damping of flexible microcantilevers at low ambient pressures. Applied Physics Letters, Vol. 94, 163117, 2009.

Raman, A., Melcher, J., and Tung, R. Cantilever dynamics in the Atomic Force Microscope. Nano Today, Vol. 3, Pages 20-27, 2008.


Book Chapters


Raman, A., Reifenberger, R., Melcher, J., and Tung, R. Chapter 18 Noncontact Atomic Force Microscopy, Vol. 2, 2009. Ed. Morita, S. Giessibl, F. J., Wiesendanger, R.

Conference Publications


Tung, R. and Raman, A. Structural Parameter Estimation of Doubly Clamped Microbeams using Multi-modal Linear and Nonlinear Dynamic Response, The 7th European Nonlinear Dynamics Conference Rome, Italy 24-29 July 2011.

Tung, R., Jana, A., Raman, A., and Sumali, H. Hydrodynamic damping of microcantilevers oscillating near solid walls at low Knudsen numbers. ASME International Design Engineering Technical Conference 2008.

 

Ryan Tung

Position:

Mechanical Engineer
Applied Chemicals and Materials Division
Nanoscale Reliability Group

Employment History:

Fall 2006-Summer 2012 - Research Assistant, Purdue University, West Lafayette, IN, USA

Summer 2008, Student Intern, Sandia National Laboratories, Albuquerque, NM, USA

Jan 2006-May 2006 - Engineering Intern, GE Power Systems - Bently, Nevada, Minden, Nevada, USA

Summer 2005 - Engineering Intern, Sierra Pacific Power - Tracy Clark Power Station, Reno, Nevada, USA.



Education:

2012- Ph.D Mechanical Engineering, Purdue University, West Lafayette, IN

2008- MS Mechanical Engineering, Purdue University, West Lafayette, IN

2006- BS Mechanical Engineering, University of Nevada, Reno NV



Contact

Phone: 303-497-6854
Email: ryan.tung@boulder.nist.gov
Fax: 303-497-5030