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Published on: March 5, 2021
Label-free sensing of virus-like particles below the sub-diffraction limit by wide-field photon state parametric
Xiao Jin1, Heng Zhang1, Bin Ni1
1School of Electronic and Optical Engineering, Nanjing University of Science and Technology Nanjing 210094 P. R. China liuxf_1956@sina.com jichuan.xiong@njust.edu.cn.
Abstract:
A parallel four-quadrant sensing method utilizing a specially designed gold nanodot array is created for sensing virus-like particles with a sub-diffraction limit size (∼100 nm) in a wide-field image. Direct label-free sensing of viruses using multiple four-quadrant sensing channels in parallel in a wide-field view enables the possibility of high-throughput onsite screening of viruses.
