Cheng Wang

Dr. Cheng Wang

Postdoctoral Fellow in Applied Physics
Harvard John A. Paulson School of Engineering and Applied Sciences
Cheng Wang



B.S. Tsinghua University (2008-2012)

Ph.D. Harvard University (2012-2017)




Cheng received his B.S. degree in Microelectronics from Tsinghua University in 2012. Afterwards, he joined Harvard University as a PhD student in the School of Engineering and Applied Sciences, advised by Prof. Marko Loncar. He received his Ph.D. degree in Electrical Engineering in May 2017, and is now a postdoctoral fellow in the Loncar group. Cheng's research focuses on enhancing light-matter interaction in nanophotonic structures. In particular, Cheng is interested in the miniaturization of lithium niobate photonic devices and their applications in optical communications and nonlinear optics.


Journal Publications:


C. Wang, M. Zhang, B. Stern, M. Lipson, and M. Lončar “Nanophotonic lithium niobate electro-optic modulators”, submitted (arXiv: 1701.06470).

Z. Li, M.H. Kim, C. Wang, Z. Han, S. Shrestha, A. Overvig, M. Lu, A. Stein, A. Agarwal, M. Lončar, and N. Yu “Controlling Propagation and Coupling of Waveguide Modes Using Phase-Gradient Metasurfaces”, Nature Nanotechnology (2017), doi:10.1038/nnano.2017.50.

C. Wang, X. Xiong, N. Andrade, V. Venkataraman, X.F. Ren, G. Guo, and M. Lončar “Second harmonic generation in nano-structured thin-film lithium niobate waveguides”, Optics Express, 25 (2017): 6963-6973.

K. Chung, T.J. Karle, C. Wang, M. Lončar, and S. Tomljenovic-Hanic “Hybrid nanodiamond and titanium dioxide nanobeam cavity design”, Optics Materials Express, 3 (2017): 785-792.

C. Wang, Q. Quan, S. Kita, Y. Li, and M. Lončar “Single-nanoparticle detection with slot-mode photonic crystal cavities”, Applied Physics Letters, Vol. 106 (2015): 261105.

Y. Li, C. Wang*, and M. Lončar “Design of nano-groove photonic crystal cavities in lithium niobate”, Optics Letters, Vol. 40 (2015): 2902-2905.

C. Wang, M.J. Burek, Z. Lin, H.A. Atikian, V. Venkataraman, I.C. Huang, P. Stark, and M. Lončar “Integrated high quality factor lithium niobate microdisk resonators”, Optics Express, Vol. 22 (2014): 30924–30933.

D. Yang, S. Kita, F. Liang, C. Wang, H. Tian, Y. Ji, M. Lončar, and Q. Quan “High sensitivity and high Q-factor nanoslotted parallel quadrabeam photonic crystal cavity for real-time and label-free sensing”, Applied Physics Letters, Vol. 105 (2014): 063118.

C. Wang, H. P. Ho, and P. Shum “High performance spectral-phase surface plasmon resonance biosensors based on single- and double-layer schemes”, Optics Communications, Vol. 291 (2013): 470-475.


Conference Presentations:


   C. Wang, M.J. Burek, Z. Lin, H.A. Atikian, V. Venkataraman, I.C. Huang, P. Stark, and M. Lončar, "Integrated Lithium Niobate Nonlinear Optical Devices", CLEO 2015, San Jose, CA, May 10-15, 2015 (invited talk)

   C. Wang, Q. Quan, S. Kita, and M. Lončar “Slot-mode Photonic Crystal Nanobeam Cavity for Single-protein Sensing”, PECS, Shanghai, May 13, 2014.

   C. Wang, H. P. Ho, and P. Shum “Analysis of spectral-phase conventional and long-range surface plasmon resonance biosensors”, SPIE Photonics West, San Francisco, CA, February 9, 2012.