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The use of motion peculiarities of particles of the Rayleigh light scattering mechanism for defining the coherence properties of optical fields

Zenkova C, Soltys I, Angelsky P

Optica Applicata

2013

Vol. 43, nr 2

s. 297--312

The paper proposes an alternative possibility for using the motion dynamics of tested particles of the Rayleigh light-scattering mechanism for estimating the degree of coherence of mutually orthogonal fields. The velocity of nanoparticles motion in the inhomogeneous optical field is chosen as the measuring parameter for diagnostics. The direct connection between the velocity of nanoscale particle motion and the degree of coherence of interacting fields is analytically demonstrated.

Influence of the Brownian movement on the motion of nanoand micro-particles in the inhomogeneous optical field

Zenkova C. Y., Gorsky M. P., Soltys I. V., Angelsky P. O.

Opto-Electronics Review

2012

Vol. 20, No. 3

247-254

The motion of light scattering particles of the Mie and Rayleigh micro- and nano-range type in the inhomogeneously-polarized optical field, with allowance made for the Brownian movement, is analysed in the paper. The spatial modulation of polarization in the observation plane determines the spatial modulation of the volume energy density. That is why the velocity and the resulting optical force, which cause the motion of the testing particles, change according to the degree of coherence of the interacting fields. The influence of the forces which arise in the viscous medium and cause the Brownian movement upon the mechanisms of manipulating and trapping testing particles by the optical field is studied.

Metrology of degree of coherence of circularly polarized optical waves

Zenkova C. Y., Gorsky M. P., Gorodynska N. V.

Opto-Electronics Review

2011

Vol. 19, No. 3

290-295

The use of the method of field polarization modulation for defining the degree of coherence of circularly polarized waves is offered. The role of the reference circularly polarized wave in transforming the spatial distribution of polarization into the depth of visibility modulation of the resulting distribution, which can be metrologically estimated and analyzed, is demonstrated.