学术报告——Tunable Liquid Microlenses for In-plane Light Manipulation
报告人：Xuming Zhang 教授（香港理工大学）
Xuming Zhang is currently an associate professor with Department of Applied Physics, Hong Kong Polytechnic University. He received BEng degree in Precision Mechanical Engineering from the University of Science & Technology of China (USTC) in 1994, and Ph.D. degree from School of Electrical & Electronic Engineering, Nanyang Technological University (NTU) in 2006. His research resulted in more than 100 journal papers and has been extensively reported by public media. His current research interests cover mainly microfluidics, artificial photosynthesis, biomimetics and green energy.
Microfluidics provides a versatile platform to construct new micro-optical systems with flexible reconfigurability and high compatibility. Among many novel devices, a prominent one is the in-plane tunable liquid microlens. It manipulates the light in the plane of the substrate, upon which the liquid sample is held. Benefiting from the compatibility, the in-plane microlenses can be incorporated into a single chip without complicated manual alignment and promises high integration density. In term of the tunability, the in-plane liquid lenses can be either tuned by adjusting the fluidic interface using numerous microfluidic techniques, or by modulating the refractive index of the liquid using temperature, electric field and concentration. In this talk, our recent work in in-plane liquid lenses will be presented, covering the operation mechanisms and their applications.