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.

Labs: Listen Lab

Research Interests

  • Bio-Inspired Sensing & Bio-Mechanics
  • Acoustic Metamaterials
  • Theoretical & Experimental Mechanics
  • Shock Wave & Dynamic Pressure Measurement
  • Fiber Optic & MEMS Sensors for Various Applications

Courses Taught




ENGR 2332

Engineering Dynamics


MEE 4422

Mechanical Vibrations


MEE 5423

Engineering Acoustics


Selected Publications

  • Song, X. & Liu, H. (2021). Free Vibration of Bistable Clamped-Clamped Beams: Modeling and Experiment. Journal of Vibration and Acoustics, Transactions of the ASME, 143(4). doi: 10.1115/1.4048553

  • Chi, Y., Tang, Y., Liu, H., & Yin, J. (2020). Leveraging Monostable and Bistable Pre-Curved Bilayer Actuators for High-Performance Multitask Soft Robots. Advanced Materials Technologies, 5(9). doi: 10.1002/admt.202000370

  • Dong, Q., Song, X., & Liu, H. (2020). Effects of air cavity in dynamic pressure sensors: Experimental validation. Sensors (Switzerland), 20(6). doi: 10.3390/s20061759

  • Islam, S., Song, X., Choi, E.T., Kim, J., Liu, H., & Kim, A. (2020). In Vitro Study on Smart Stent for Autonomous Post-Endovascular Aneurysm Repair Surveillance. IEEE Access, 8, pp. 96340-96346. doi: 10.1109/ACCESS.2020.2996506

  • Song, X. & Liu, H. (2020). Free vibration of bistable clamped-clamped beams: A preliminary study. Proceedings of the ASME Design Engineering Technical Conference, 7. doi: 10.1115/DETC2020-22560

  • Dong, Q., Song, X., Ray, S., & Liu, H. (2020). Acoustic metamaterial with air-backed diaphragm for broadband absorption: A preliminary study. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 1. doi: 10.1115/IMECE2020-23928

  • Dong, Q., Bae, H., Zhang, Z., Chen, Y., Wen, Z., Olson, D.A., Yu, M., & Liu, H. (2019). Miniature Fiber Optic Acoustic Pressure Sensors with Air-Backed Graphene Diaphragms. Journal of Vibration and Acoustics, Transactions of the ASME, 141(4). doi: 10.1115/1.4042929

  • Hanson, E., Olson, D.A., Liu, H., Ahmed, Z., & Douglass, K.O. (2018). Towards traceable transient pressure metrology. Metrologia, 55(2), pp. 275-283. doi: 10.1088/1681-7575/aaad1b

  • Chen, Y., Liu, H., Zhang, Z., Gupta, A.K., & Yu, M. (2017). Planar photonic crystal based multifunctional sensors: Erratum (Appl. Opt. (2017) 56 (1775-1780) DOI: 10.1364/AO.56.001775). Applied Optics, 56(31), p. 8663. doi: 10.1364/AO.56.008663

  • Chen, Y., Liu, H., Zhang, Z., Gupta, A.K., & Yu, M. (2017). Erratum: Planar photonic crystal based multifunctional sensors: Publisher's note (Applied Optics (2017) 56 (1775-1780) DOI: 10.1364/AO.56.001775). Applied Optics, 56(9), p. 2397. doi: 10.1364/AO.56.002397

  • Chen, Y., Liu, H., Zhang, Z., Gupta, A.K., & Yu, M. (2017). Planar photonic crystal based multifunctional sensors. Applied Optics, 56(6), pp. 1775-1780. doi: 10.1364/AO.56.001775

  • Sterbing-D'Angelo, S.J., Liu, H., Yu, M., & Moss, C.F. (2016). Morphology and deflection properties of bat wing sensory hairs: Scanning electron microscopy, laser scanning vibrometry, and mechanics model. Bioinspiration and Biomimetics, 11(5). doi: 10.1088/1748-3190/11/5/056008

  • Ganye, R., Chen, Y., Liu, H., Bae, H., Wen, Z., & Yu, M. (2016). Characterization of wave physics in acoustic metamaterials using a fiber optic point detector. Applied Physics Letters, 108(26). doi: 10.1063/1.4955058