title: An optical tweezer actuated, nanoaperture-grid based Optofluidic Microscope implementation method.
abstract: We report a novel grid based Optofluidic Microscope (OFM) method where a closely spaced 2D grid of nanoapertures (diameter = 100 nm, separation = 2.5 mum) provided patterned illumination. We achieved a one-to-one mapping of the light transmissions through the nanoapertures onto a high-speed CCD camera. By optically tweezing a targeted sample across the grid in a controlled fashion and recording the time varying light reception from the nanoapertures, we were able to generate high-resolution images of the sample. The achievable resolution limit of the prototype was ~ 110 nm (Sparrow's criterion) under optimal conditions. We demonstrated the technique by imaging polystyrene beads and pollen spores.
authors: Xin
authors: X
authors: Heng
authors: Edward
authors: E
authors: Hsiao
authors: Demetri
authors: D
authors: Psaltis
authors: Changhuei
authors: C
authors: Yang