Figure 5
From: Hydrodynamic particle focusing enhanced by femtosecond laser deep grooving at low Reynolds numbers

The performance of focusing 10-µm polystyrene particles using the open v-shaped microstructures achieved by femtosecond pulse laser at different energies of 0 (control), 0.7, 1.4, 2.1 and 2.8 µJ/pulse.