Secondary convergence in femtosecond laser trapping

Jiang, YQ, Ma, CG, Oh, I, Hosokawa, Y, Masuhara, H

When femtosecond laser pulses pass through a trapped polystyrene bead, water breakdown is induced even though the energy of laser pulse is much lower compared to the threshold value of breakdown when the femtosecond laser directly irradiates in water. This mechanism is assigned to the secondary convergence of the laser by the trapped bead.

DOI