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Hanna Cho

  • Assistant Professor, Mechanical & Aerospace Engr
  • 201 W 19th Ave
    E505 Scott Lab
    Columbus, OH 43210
  • 614-292-2902

About

Research interests include:

  • Developing nonlinear NEMS/MEMS using multi-functional materials to utilize intrinsically nonlinear characteristics such as broadband resonance, frequency tunability, and nonlinear instability
  • Advancing the state-of-art AFM techniques through understanding and enhancing the AFM cantilever dynamics to achieve better material characterization. 
  • Developing energy systems based on multi-functional ferroelectric material.  
  • These studies are expected to broadly impact both practical applications (e.g., energy harvesting devices, electromechanical signal processing, and sensing) and fundamental research in the field of nano- and bio-science and nonlinear dynamics. 

Faculty Focus: https://mae.osu.edu/faculty-focus/cho

Chapters

2016

  • 2016. "Intentional nonlinearity for design of micro/nanomechnical resonators." In Nanocantilever Beams: Modeling, Fabrication, and Applications, edited by Voiculescu, I.; Zaghloul, M.,

Journal Articles

2018

  • Potekin, R.; Dharmasena, S.; Keum, H.; Jiang, X. et al., 2018, "Multi-frequency Atomic Force Microscopy based on enhanced internal resonance of an inner-paddled cantilever." Sensors and Actuators, A: Physical 273, 206-220 - 206-220.
  • Dharmasena, S.M.; Yang, Z.; Kim, S.; Bergman, L.A. et al., 2018, "Ultimate Decoupling between Surface Topography and Material Functionality in Atomic Force Microscopy Using an Inner-Paddled Cantilever." ACS NANO 12, no. 6, 5559-5569 - 5559-5569.
  • Asadi, K.; Yu, J.; Cho, H., 2018, "Nonlinear couplings and energy transfers in micro- and nano-mechanical resonators: intermodal coupling, internal resonance and synchronization." PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 376, no. 2127,

2016

  • Jeong, B.; Pettit, C.; Dharmasena, S.; Keum, H. et al., 2016, "Utilizing intentional internal resonance to achieve multi-harmonic atomic force microscopy (vol 27, 125501, 2016)." NANOTECHNOLOGY 27, no. 19,
  • Jeong, B.; Pettit, C.; Dharmasena, S.; Keum, H. et al., 2016, "Utilizing intentional internal resonance to achieve multi-harmonic atomic force microscopy." NANOTECHNOLOGY 27, no. 12,

2014

  • Bhatia, B.; Damodaran, A.R.; Cho, H.; Martin, L.W. et al., 2014, "High-frequency thermal-electrical cycles for pyroelectric energy conversion." JOURNAL OF APPLIED PHYSICS 116, no. 19,
  • Jeong, B.; Cho, H.; Keum, H.; Kim, S. et al., 2014, "Complex nonlinear dynamics in the limit of weak coupling of a system of microcantilevers connected by a geometrically nonlinear tunable nanomembrane." NANOTECHNOLOGY 25, no. 46,

2013

  • Jeong, B.; Cho, H.; Yu, M-F.; Vakakis, A.F. et al., 2013, "Modeling and Measurement of Geometrically Nonlinear Damping in a Microcantilever-Nanotube System." ACS NANO 7, no. 10, 8547-8553 - 8547-8553.
  • Cho, H.; Felts, J.R.; Yu, M-F.; Bergman, L.A. et al., 2013, "Improved atomic force microscope infrared spectroscopy for rapid nanometer-scale chemical identification." NANOTECHNOLOGY 24, no. 44,
  • Felts, J.R.; Cho, H.; Yu, M-F.; Bergman, L.A. et al., 2013, "Atomic force microscope infrared spectroscopy on 15 nm scale polymer nanostructures." REVIEW OF SCIENTIFIC INSTRUMENTS 84, no. 2,

2012

  • Cho, H.; Yu, M-F.; Vakakis, A.F.; Bergman, L.A. et al., 2012, "Dynamics of microcantilever integrated with geometric nonlinearity for stable and broadband nonlinear atomic force microscopy." SURFACE SCIENCE 606, no. 17-18, L74-L78 - L74-L78.
  • Cho, H.; Jeong, B.; Yu, M-F.; Vakakis, A.F. et al., 2012, "Nonlinear hardening and softening resonances in micromechanical cantilever-nanotube systems originated from nanoscale geometric nonlinearities." INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 49, no. 15-16, 2059-2065 - 2059-2065.

2010

  • Cho, H.; Yu, M-F.; Vakakis, A.F.; Bergman, L.A. et al., 2010, "Tunable, Broadband Nonlinear Nanomechanical Resonator." NANO LETTERS 10, no. 5, 1793-1798 - 1793-1798.

2008

  • Shin, S.; Cho, H.N.; Kim, B.S.; Cho, H.H., 2008, "Influence of upper layer on measuring thermal conductivity of multilayer thin films using differential 3-omega method." THIN SOLID FILMS 517, no. 2, 933-936 - 933-936.

2007

  • Yum, K.; Cho, H.N.; Hu, H.; Yu, M-F., 2007, "Individual nanotube-based needle nanoprobes for electrochemical studies in picoliter microenvironments." ACS NANO 1, no. 5, 440-448 - 440-448.

1998

  • Ghosh, A.K.; Cho, H.; Cappiello, J., 1998, "Bis(oxazoline) derived cationic aqua complexes: Highly effective catalysts for enantioselective Diels-Alder reactions." Tetrahedron Asymmetry 9, no. 20, 3687-3691 - 3687-3691.

1997

  • Ghosh, A.K.; Cho, H.; Onishi, M., 1997, "Asymmetric alkylations and aldol reactions: (1S,2R)-2-aminocyclopentan-1-ol derived new chiral auxiliary." Tetrahedron Asymmetry 8, no. 6, 821-824 - 821-824.

Presentations

  • "New AFM Probe to Characterize Mechanical and Functional Material Properties." 2017, Presented at 2017 MRS Fall Meeting,
  • "Internal Resonances in a Geometrically Nonlinear Microcantilever-Polymer System." 2017, Presented at NAPA Microsystems Workshop,
  • "Enhanced Nonlinear Internal Resonance in the Design of a New Cantilever for AFM." 2017, Presented at ASME 2017 IDECT International Design Engineering Technical Conferences,
  • "Measurement of Multi-physical Properties in Atomic Force Microscopy Using a Dual Frequency Cantilever Design." 2017, Presented at ASME 2017 IDECT International Design Engineering Technical Conferences,
  • "Nonlinear Response of a Geometrically Nonlinear System of Microcantilever-Polymer to Subharmonic and Combination Resonances." 2017, Presented at ASME 2017 IDECT International Design Engineering Technical Conferences,
  • "A Comprehensive Study on Multi-mode Nonlinearity in Intentionally Nonlinearized System of Mcirocantilever-Polymer." 2017, Presented at ASME 2017 IDECT International Design Engineering Technical Conferences,
  • "Subharmonic, Combination, and Internal Resonances of a Geometrically Nonlinear Microcantilever-Polymer Systems." 2017, Presented at SIAM Conference on Application of Dynamical Systems,
  • "Theoretical and Experimental Study of a New Design for Higher-Harmonic Atomic Force Microscopy Resulting in Enhanced Material Characterization." 2016, Presented at ASME 2016 IDECT International Design Engineering Technical Conferences,
  • "Integration of Intentional Geometric Nonlinearity for a Broadband Mciromechanical Resonator." 2014, Presented at ASME 2014 International Mechanical Engineering Congress & Exposition,
  • "Third Harmonic Atomic Force Microscopy Realized by 1:3 Internal Resonances." 2014, Presented at ,” ASME 2014 IDECT International Design Engineering Technical Conferences,
  • "Quantitative Measurement of Local Piezoelectric Response on Compositionally Homogeneous and Inhomogeneous Ferroelectric Thin Films." 2014, Presented at 2014 MRS Spring Meeting & Exhibit,
  • "Integration of Geometric Nonlinearity For Stable and Broadband Nonlinear Atomic Force Microscopy." 2013, Presented at ASME 2013 International Mechanical Engineering Congress & Exposition,
  • "Nonlinear Damping Originated Geometrically in a Microcantilever-Nanotube Dynamic System." 2013, Presented at ASME 2013 International Mechanical Engineering Congress & Exposition,
  • "Cantilever Dynamics During Atomic Force Microscope Infrared Spectroscopy." 2013, Presented at NMC 2013 10th Workshop on Nanomechanical Sensing,
  • "Improved Atomic Force Microscope Infrared Spectroscopy For Rapid Nanometer-scale Chemical Imaging of a Polymer Blend." 2013, Presented at 2013 MRS Spring Meeting & Exhibit,
  • "Improved Atomic Force Microscope Infrared Spectroscopy on Sub-100 nanometer Polymer Nanostructures." 2012, Presented at 2012 MRS Fall Meeting & Exhibit,
  • "Tunable and Broadband Nonlinear Nanomechanical Resonators." 2010, Presented at 2010 APS March Meeting,
  • "Explore Nonlinear Nanomechanical Resonators For Practical Sensing Applications." 2010, Presented at 2010 MRS Spring Meeting & Exhibit,
  • "Measurement of Thermal Conductivity of Silicon Nitride Thin Films." 2006, Presented at 13th International Heat Transfer Conference,
  • "Measurement of Thermal Conductivity of Silicon Oxide Thin Film with Upper Layer by Using Differential 3ω Method." 2005, Presented at The 6th KSME-JSME Thermal and Fluids Engineering Conference,
  • "The Measurement of Thermal Conductivity of Nanoscale Dielectric Thin Film Using 3ω Method." 2004, Presented at 2014 International Symposium on Micro/Nanoscale Energy Conversion & Transport,
  • "Characterization and Optimization of 1:2 Internal Resonance in a Stepped Fixed-Fixed Microbeam." 2018, Presented at 2018 International Mechanical Engineering Congress & Exposition,
  • "New Design of a Mechanical Transducer in Atomic Force Microscopy for Imaging beyond Topography." 2018, Presented at 2018 IMECE International Mechanical Engineering Congress & Exposition,
  • "An Inner-paddled Cantilever for Atomic Force Microscopy beyond Topography." 2018, Presented at NMC 2018 15th Workshop on Nanomechanical Sensing,
  • "Nanoindentation Based Characterization of Peri-implant Bone Quality in Canine Fresh Extraction Sockets." 2018, Presented at 2018 ORS Annual Meeting,
  • "Characterization of Piezoelectricity of Collagen in Osteogenesis Imperfecta via Piezoresponse Force Microscopy." 2018, Presented at 2018 ORS Annual Meeting,
  • "Intentional Nonlinearity in the Design of Dynamic Micro/Nanomechanical Systems via Nanomaterial-Integrated Fabrication." 2013, Presented at Department Special Seminar,
  • "Nonlinear Resonances at Micro/Nano-scales: Modeling, Intentional Implementation, and Applications." 2015, Presented at Invited Seminar,
  • "Nonlinear Resonances at Micro/Nano-scales: Modeling, Intentional Implementation, and Applications." 2015, Presented at MAE Department Seminar,
  • "Exploiting Nonlinearity in MEMS/NEMS." 2016, Presented at Korean-American Scientists and Engineers Association Ohio Chapter Conference,
  • "Recent Advancement of Atomic Force Microscopy and Its Applications." 2017, Presented at Department Special Seminar,
  • "A New Cantilever System to Advance Atomic Force Microscopy." 2017, Presented at Expert Seminar,
  • "A New AFM Cantilever System To Provide an Invariable Contact Resonance Frequency." 2017, Presented at Expert Seminar,
  • "Exploiting Nonlinearity in MEMS/NEMS." 2017, Presented at Expert Seminar at ARL,
  • "Exploiting Nonlinearity in MEMS." 2017, Presented at EECS Department Seminar,
  • "Exploiting Nonlinearity in Micro/Nanoscale Systems." 2017, Presented at MAE Research Seminar Series,
  • "Exploiting Nonlinear Dynamics at Micro/Nano System." 2018, Presented at MAE Colloquium Series Fall 2018 Program,
  • "Invited Lecturer of the Workshop titled "Scanning Probe Microscopy, Beyond Topography"." 2017, Presented at 17th IEEE International Conference on Nanotechnology 2017 (IEEE-Nanao 2017),
  • "Invited Panel "Present and Future Challenges in Nonlinear Dynamics and Vibrations: From Theory to Design"." 2015, Presented at ASME 2015 IDETC International Design Engineering Technical Conferences,
  • "Intentional Nonlinearity in the Design of Dynamic Micro/Nanomechanical Resonators Via Nanomaterial-Integrated Fabrication." 2012, Presented at Invited Seminar,
  • "Nonlinear Dynamics In Micro/Nanoscale Mechanical Systems & Applications." 2018, Presented at Department Special Seminar,
  • "Atomic Force Microscopy for Material Research in the Fields of Bio, Environment, and Energy." 2018, Presented at Expert Seminar,
  • "Recent Advancement of Atomic Force Microscopy and Its Applications." 2018, Presented at Department Special Seminar,
  • "Intentionally Nonlinear Design of Multi-Frequency Atomic Force Microscopy for Enhanced Material Characterization." 2016, Presented at 2016 NSF Nanoscale Science and Engineering Grantees Conference,

Papers in Proceedings

2016

  • Asadi, K.; Peshin, S.; Yeom, J.; Cho, H. "EXPERIMENTAL AND THEORETICAL STUDIES OF NONLINEAR RESONANCES IN A SI MICROCANTILEVER CONSTRAINED BY A POLYMER ATTACHMENT." in ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference (IDETC/CIE). (1 2016).
  • Asadi, K.; Peshin, S.; Yeom, J.; Cho, H. et al. "EXPERIMENTAL AND THEORETICAL STUDIES OF NONLINEAR RESONANCES IN A SI MICROCANTILEVER CONSTRAINED BY A POLYMER ATTACHMENT." (1 2016).
  • Asadi, K.; Yeom, J.; Peshin, S.; Cho, H. "Experimental and theoretical studies of nonlinear resonances in a si microcantilever constrained by a polymer attachment." (1 2016).

2015

  • Pettit, C.; Jeong, B.; Keum, H.; Lee, J. et al. "MICROCANTILEVER SYSTEM INCORPORATING INTERNAL RESONANCE FOR MULTI-HARMONIC ATOMIC FORCE MICROSCOPY." in 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS). (1 2015).
  • Pettit, C.; Jeong, B.; Keum, H.; Lee, J. et al. "MICROCANTILEVER SYSTEM INCORPORATING INTERNAL RESONANCE FOR MULTI-HARMONIC ATOMIC FORCE MICROSCOPY." (1 2015).
  • Pettit, C.; Jeong, B.; Keum, H.; Lee, J. et al. "Microcantilever system incorporating internal resonance for multi-harmonic atomic force microscopy." (1 2015).

2013

  • Cho, H.; Felts, J.R.; Yu, M.F.; Bergman, L.A. et al. "Cantilever dynamics and energy localization during atomic force microscope infrared spectroscopy." (12 2013).

2005

  • Cho, H.N.; Shin, S.W.; Cho, H.H. "Influence of upper layer on measurement of thermal conductivity using differential 3 omega method." (12 2005).

Patents

  • "Cantilever for atomic force microscopy."
  • "Mechanical Nanoresonator for Extremely Broadband Resonance."