Nanoparticle sorting in silicon waveguide arrays

• Main Authors: Zhao, Haitao, Zhang, Yi, Chin, Lip Ket, Yap, Peng Huat, Wang, Kuan, Ser, Wee, Liu, Ai Qun
• Other Authors: Dholakia, Kishan
• Format: Article
• Language: English
• Published: 2019
• Subjects: Optical Fractionation; Engineering::Electrical and electronic engineering; Near-field
• Online Access: https://hdl.handle.net/10356/106406; http://hdl.handle.net/10220/49626; http://dx.doi.org/10.1117/12.2273251
• Institution: Nanyang Technological University

This paper presents the optical fractionation of nanoparticles in silicon waveguide arrays. The optical lattice is generated by evanescent coupling in silicon waveguide arrays. The hotspot size is tunable by changing the refractive index of surrounding liquids. In the experiment, 0.2-μm and 0.5-μm p...