His research involves developing the electromagnetic wave manipulation mechanisms of optical metasurfaces, cross-scale fabrication methods, and near-field to far-field characterization techniques. The focus is on functional modulation of micro- and nano-structured devices and on-chip spectral sensing applications spanning from the visible to the mid-to-far-infrared spectral ranges. This encompasses three main aspects: innovating design and control principles for optical metasurfaces, in-depth exploration of on-chip integration processes for practical micro- and nano-devices with detectors, and the investigation of spectral sensing applications based on micro- and nano-devices.

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He currently chairs two China Postdoctoral Science Foundation projects: special funding and General Program.

Articles：

1.S. Dong, H. Jiao, Z. Wang, J. Zhang*, X. Cheng*, “Interface and defects engineering for multilayer laser coatings”, Progress in Surface Science 100663 (2022).

2. J. Zhou^#,S. Dong^#*, Z. Wei, J. Zhang, X. Deng, Z. Wang, X. Cheng, “Two-dimensional guided-mode resonance gratings with an etch-stop layer and high tolerance to fabrication errors”, Optics Express, 30(14): 25907 (2022). (^#Contributed equally).

3. Z. Ma^#,S. Dong^#*, X. Dun, Z. Wei, Z. Wang, X. Cheng, “Reconfigurable Metalens with Phase-Change Switching between Beam Acceleration and Rotation for 3D Depth Imaging”, Micromachines 13(4): 607 (2022). (^#Contributed equally).

4. X. Cheng,S. Dong, S. Zhi, S. Paschel, I. Balasa, D. Ristau, Z. Wang*, “Waterproof coatings for high-power laser cavities”, Light: Science & Applications 8(12) (2019).

5.S. Dong, J. Zhang, H. Jiao, W, Zhang, X. Li, Z. Wang, X. Cheng*, “Nanopillars assisted multilayer antireflection coating for photovoltaics with multiple bandgaps”, Applied Physics Letters, 115(13): 133106 (2019).

6.S. Dong, H. Jiao, G. Bao, J. Zhang, Z. Wang, X. Cheng*, “Origin and compensation of deposition errors in a broadband antireflection coating prepared using quartz crystal monitoring”, Thin Solid Films 660: 54-58 (2018)

7. F. Liu^#,S. Dong^#, J. Zhang, H. Jiao, B. Ma, Z. Wang, X. Cheng*, “Interface and material engineering for zigzag slab lasers”, Scientific Reports 7 (2017). (^#Contributed equally).

Patents：

Selected to participate in the “Super Doctoral Postdoctoral ” Incentive Program by the city of Shanghai in 2020.