纳米光子光镊与原位光激发：光镊是一种在液态环境中对微纳粒子进行操控的技术，因其在操控中无接触与低伤害的特点，被广泛应用于单分子生物学等科研领域中，于2018年获得诺贝尔物理学奖。课题组利用纳米光子结构中捕捉区域与激发区域重合的特点，对被捕捉粒子进行高效光激发，有助于解决单体粒子原位表征及非传统光源（如纳米激光器、单光子源等）制备问题。

代表性成果：

Y. Pang, H. Song, and W. Cheng*, “Using optical trap to measure the refractive index of a single animal virus in culture fluid with high precision”, Biomedical Optics Express 7, 1672-1689, 2016.

Y. Pang, H. Song, J. H. Kim, X. Hou, and W. Cheng*, “Optical Trapping of Individual Human Immunodeficiency Viruses in Culture Fluid Reveals Heterogeneity with Single-Molecule Resolution”, Nature Nanotechnology 9, 624-630, 2014.

Y. Pang, and R. Gordon*, “Optical Trapping of a Single Protein,” Nano Letters 12(1), 402–406 (2012).

Y. Pang, and R. Gordon*, “Optical Trapping of 12 nm Dielectric Spheres Using Double-Nanoholes in a Gold Film,” Nano Letters 11(9), 3763–3767 (2011).