Abstract
The modelling of heating a spherical polystyrene microparticle by the laser beam having the wavelength 355 nm and varying spot size is described. The simulation results are presented for two different values of the beam spot radius. Nature experiments are reported aimed at measuring the velocity of a particle with the radius 5µm accelerated by microexplosion of the neighbouring particle.
Highlights
At present, all studies on manipulation are progressing towards the reduction of the moved object size. [1,2,3]
It is desirable to prevent the light incidence on the microscopic object
The subject of the present study are the motion parameters of microobjects driven by the explosion of a polystyrene microparticle. The goal of this works was to calculate, simulate and experimentally verify the parameters at which the spherical polystyrene particle explodes in the pulsed ultraviolet laser beam
Summary
All studies on manipulation are progressing towards the reduction of the moved object size. [1,2,3]. It is desirable to have a method for moving relatively large microscopic objects (larger than 30 μm) Such objects most frequently observed in biological studies (spores, tissue microsamples, large cells). Using this method it is possible to move sufficiently large microobjects (including the biological ones) without loss or partial destruction of the manipulated object. The subject of the present study are the motion parameters of microobjects driven by the explosion of a polystyrene microparticle The goal of this works was to calculate, simulate and experimentally verify the parameters at which the spherical polystyrene particle explodes in the pulsed ultraviolet laser beam. Calculation of particle dispersion velocity for different focusing objectives (20×, 40×, 100×)
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