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Controlling and manipulation of red blood cells by evanescent waves

Angelsky O. V., Zenkova C. Y., Maksymyak P. P., Maksymyak A. P., Ivanskyi D. I.

Optica Applicata

2019

Vol. 49, nr 4

597--611

A theoretical model for describing the influence of the evanescent wave on the red blood cell (RBC, erythrocyte) in the blood plasma is suggested in this research work. Two optical schemes for creating an evanescent wave and the features of the created field’s effect on the erythrocyte are considered. The conditions for the formation of optical forces and optical momentum, in particular, of the vertical spin of the evanescent wave, which causes a transverse displacement of the erythrocyte, are proposed. The use of a linearly polarized plane wave with azimuth of ±45° in a model experiment, specially suggested in this work, allows for visualization of the transverse controlled motion of the erythrocyte, which enables to claim about new possibilities for controlling microobjects in biology and medicine.

Optical torques and forces in birefringent microplate

Zenkova C. Y., Ivanskyi D. I., Kiyashchuk T. V.

Optica Applicata

2017

Vol. 47, nr 3

483-493

The paper presents a theoretical model for calculating the optical forces caused by the density of spin and orbital momentum and optical torque, caused by the angular momentum typical for a circularly polarized beam or a circular component of an elliptically polarized beam. Total internal reflection at the plate–air interface implemented by the birefringent plate spattered with nanoparticles of gold creates the conditions for the allocation of the predominant action of the vertical spin of the evanescent wave, which has recently been predicted theoretically.