FIELD: physics.
SUBSTANCE: method for optical capturing of a particle in soft biological tissue is based on irradiating the surface of the tissue with a parallel beam of coherent laser radiation and determining the depth z of the captured particle in the tissue. The radiation wavelength λ* is selected depending on the depth z - for z<0.1 mm λ*=450 nm, for z≥0.1 mm λ*=1250·[1-exp(-z/1.35)], where λ* is given in nm and z in mm.
EFFECT: invention provides maximum particle capturing force with minimal heating of the tissue.
3 dwg
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