Fig. 2: Assembly of polystyrene particles on the tip of the optical fibre module. | Communications Physics

Fig. 2: Assembly of polystyrene particles on the tip of the optical fibre module.

From: Highly efficient three-dimensional optical condensation of nano- and micro-particles using a gold-coated optical fibre module

Fig. 2

a Optical transmission image and b–d fluorescence images of optical condensation with the optical fibre module at 60 s after laser irradiation for each concentration of 1 μm PS particles (concentration: a, b 4.55 × 107, c 4.55 × 106 and d 4.55 × 108 particles/mL). Here, green fluorescent objects in (b–d) show 1 μm PS particles. White ellipses in (b–d) indicate assembly area. The scale bar is 75 μm.

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