Haijun Liu
Haijun Liu
Assistant Professor
Department: Mechanical Engineering


Dr. Haijun Liu is an Assistant Professor in the Department of Mechanical Engineering at Temple University. He earned his Ph.D. in Mechanical Engineering from University of Maryland, College Park (UMD) in 2012. Prior to joining Temple University, he was a post-doctoral Research Associate at the National Institute of Standards and Technology (Gaithersburg, MD) and UMD. His area of expertise is in the fundamental science of sensor technology and its applications. In particular, his research focuses on employing new sensing mechanisms inspired by nature, engineering advanced metamaterials, and developing a solid understanding of the pertinent mechanics. Dr. Liu was a Future Faculty Fellow at the A. James Clark School of Engineering of UMD in 2009-2010. 



  • Ph.D., Mechanical Engineering, University of Maryland, College Park, 2012
  • M.S., Material Science, Tsinghua University, 2005
  • B.S., Mechanical Engineering, Tsinghua University, 2002

Academic appointments

  • Assistant Professor, Temple University, Philadelphia, 2015-present
  • Research Associate, National Institute of Standards and Technology (Gaithersburg, MD), 2013-2015
  • Research Associate, University of Maryland, College Park, 2013-2015

Recent publications

  • Z. Zhang, Y. Chen, H. Liu, H. Bae, D.A. Olson, A.K. Gupta, and M. Yu. On-fiber plasmonic interferometer for multi-parameter sensing, Optics Express, 23(8), 10732-10740, 2015
  • Y. Chen*, H. Liu*, M. Reilly, H. Bae, and M. Yu. Enhanced acoustic sensing through wave compression and pressure amplification in metamaterials, Nature Communications, 5, 5247, 2014 (*: equal contribution)
  • H. Liu, D.A. Olson, and M. Yu, Modeling of an air-backed diaphragm in dynamic pressure sensors: effects of the air cavity. Journal of Sound and Vibration, 33 (25), 7051-7075, 2014
  • H. Bae, D. Yun, H. Liu, D.A. Olson, and M. Yu. Hybrid miniature Fabry-Perot sensor with dual optical cavities for simultaneous pressure and temperature measurements, Journal of Lightwave Technology, 32 (8), 1585-1593, 2014
  • H. Liu, L. Currano, D. Gee, T. Helms, and M. Yu. Understanding and mimicking the dual optimality of the fly ear. Scientific Reports, 3, 2489, 2013

Research interest

  • Bio-inspired sensing and bio-mechanics
  • Acoustic metamaterials
  • Sound source localization and robotic navigation
  • Sensors for civil, mechanical, biochemical, biomedical, and environmental applications
  • Theoretical and experimental mechanics