New prospects of using tested particles for investigating optical fields and optical flows

O. V. ANGELSKY, C. YU. ZENKOVA, I. V. SOLTYS

We have shown that internal energy flows (spin and orbital) can be diagnosed by test particles of different sizes and properties using the methods of singular optics. The motion velocity of these particles both in the energy and polarization inhomogeneous optical fields can be employed as a diagnostic parameter of the degree of coherence of mutually orthogonal linearly polarized in the incidence plane superposing waves. The feasibilities of using the above mentioned approach, its shortcomings and its advantages over the interfering method for estimating the degree of coherence is analyzed.

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