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Chen, Yongyao (陈永耀)

Research Assistant Professor
Department of Mechanical Engineering
2105A Glenn L. Martin Hall
College Park, MD 20742

Research Interests 

  • Optical, acoustic, and mechanical functional structures and materials
  • Multifunctional optical and acoustic sensors for defense, industry and biomedical applications
  • Special materials and sensors for high energy systems (e.g., engines and combustion systems)
  • Photonic-acoustic hybrid systems and their applications for health care, industrial monitoring and national defense
  • Nano/micro fabrication and 3D printing of devices and materials
  • Bio-inspired materials and sensors applied for autonomous robotic systems (e.g., unmanned vehicles, autonomous underwater vehicles, and UAVs)


  • Ph. D., Electrical Engineering, Oklahoma State University, Stillwater, OK, USA                2012
  • Master of Science, Physical Electronics, Tianjin University, Tianjin, China                      2006
  • Bachelor of Science, Optical Engineering, Tianjin University, Tianjin, China                   2003

Selected Publications 

  1. Y. Chen, H. Liu, Z. Zhang, AK Gupta and M. Yu, “Planar photonic crystal based multifunctional sensors” Applied Optics, 56, 1775 (2017).
  2. J. Ma, M. Zhao, X. Huang, H. Bae, Y. Chen, and M. Yu, "Low cost, high performance white-light fiber-optic hydrophone system with a trackable working point," Optics Express, 24, 19008 (2016).
  3. R. Ganye, Y. Chen, H. Liu, H. Bae, Z. Wen, and M. Yu, "Characterization of wave physics in acoustic metamaterials using a fiber optic point detector," Applied Physics Letters, 108, 261906 (2016).
  4. 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, 107321 (2015).
  5. Y. Chen, H. Liu, M. Reilly, H. Bae, and M. Yu, “Enhanced acoustic sensing through wave compression and pressure amplification in anisotropic metamaterials,” Nature Communications, 5, 5247 (2014).

(Media coverage: Phys.org, International Defense, Security& Technology, Sensors Online.)

  1. Y. Chen, Z. Zhang, and M. Yu, “Tunable out-of-plane slow light in resonance induced transparent grating waveguide structures,” Applied Physics Letters, 103, 061109 (2013).
  2. J. Zhu, Y. Chen, X. Zhu, F. J. Garcia-Vidal, X. Yin, W. Zhang, and X. Zhang, “Acoustic rainbow trapping,” Nature Scientific Reports, 3, 1728 (2013).
  3. Y. Chen, I. A. Al-Naib, J. Gu, M. Wang, T. Ozaki, R. Morandotti, and W. Zhang, “Membrane metamaterial resonators with a sharp resonance: A comprehensive study towards practical THz filters and sensors,” AIP Advances, 2, 022109 (2012).
  4. J. Li, Z. Tian, Y. Chen, W. Cao, and Z. Zeng, “Distinguishing octane grades in gasoline using terahertz metamaterials,” Applied Optics, 51, 3258 (2012).
  5. Y. Chen, J. Gu, X. Xie, and W. Zhang, “Trapping and releasing light by mechanical implementation in metamaterial waveguides,”  J. Opt. Soc. Am. A, 28, 272 (2011).
  6. Z. Song and Y. Chen, “Multi-slit diffraction of evanescent electromagnetic waves,” Chinese Physics Letters, 25, 2033 (2008).
  7. Y. Li, C. Wang, X. Lu, M. Hu, Y. Chen, B. Liu, L. Chai, “Bandgap properties of Kagome photonic crystal fibers,” Applied Physics B, 86, 235 (2007).
  8. Y. Li, C. Wang, X. Lu, M. Hu, Y. Chen, B. Liu, L. Chai, “Application of effective index method to higher order modes of photonic crystal fibers,” Microwave and optical technology letters, 49, 567 (2007).
  9. Y. Chen, Z. Song, Y. Li, M. Hu, Q. Xing, Z. Zhang, L. Chai, and C. -Y. Wang, “Effective surface plasmon polaritons on the metal wire with arrays of subwavelength grooves,” Optics Express, 14, 13021 (2006).
  10. Y. Li, C. Wang, Y. Chen, M. Hu, B. Liu, L. Chai, “Solution of the fundamental space-filling mode of photonic crystal fibers: numerical method versus analytical approaches,” Applied Physics B, 85, 597 (2006).

Related News 

  • Researchers use artificially engineered materials to create breakthrough for sound sensors


UMD researchers are addressing current sensor limitations by developing new uses for artificially engineered materials to improve acoustic sensing capabilities


  • New breakthroughs in Acoustic Metamaterials have various applications

UMD researchers developed a novel metamaterial having "graded refractive index" that would compress and amplify a sound wave before detection by a sensor. Unlike other cutting-edge technologies in acoustic amplification, the GRIN material is relatively broadband and highly compact, with a theoretical length of only 2 to 4 wavelengths of the incident wave. Applications of the research could include improving the capabilities of sonar devices and medical imaging that detects cancer.