Elastomeric 2D grating and hemispherical optofluidic chamber for multifunctional fluidic sensing.

  title={Elastomeric 2D grating and hemispherical optofluidic chamber for multifunctional fluidic sensing.},
  author={Zhida Xu and Xinhao Wang and Kevin K. Han and Shuwei Li and Gang Logan Liu},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  volume={30 12},
We present an optofluidic sensor based on an elastomeric two-dimensional (2D) grating integrated inside a hemispherical fluid chamber. A laser beam is diffracted before (reflection) and after (transmission) going through the grating and liquid in the dome chamber. The sensing mechanism is investigated and simulated with a finite-difference time-domain-based electromagnetic method. For the experiment, by analyzing the size, power, and shape of the 2D diffraction patterns, we can retrieve… CONTINUE READING
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